全文获取类型
收费全文 | 1002篇 |
免费 | 130篇 |
国内免费 | 7篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 1篇 |
妇产科学 | 2篇 |
基础医学 | 12篇 |
口腔科学 | 50篇 |
临床医学 | 159篇 |
内科学 | 481篇 |
皮肤病学 | 5篇 |
神经病学 | 73篇 |
特种医学 | 10篇 |
外科学 | 45篇 |
综合类 | 104篇 |
预防医学 | 124篇 |
眼科学 | 3篇 |
药学 | 41篇 |
1篇 | |
中国医学 | 15篇 |
肿瘤学 | 12篇 |
出版年
2024年 | 2篇 |
2023年 | 30篇 |
2022年 | 20篇 |
2021年 | 53篇 |
2020年 | 58篇 |
2019年 | 59篇 |
2018年 | 57篇 |
2017年 | 53篇 |
2016年 | 30篇 |
2015年 | 29篇 |
2014年 | 70篇 |
2013年 | 128篇 |
2012年 | 44篇 |
2011年 | 45篇 |
2010年 | 48篇 |
2009年 | 41篇 |
2008年 | 38篇 |
2007年 | 41篇 |
2006年 | 32篇 |
2005年 | 40篇 |
2004年 | 41篇 |
2003年 | 28篇 |
2002年 | 16篇 |
2001年 | 19篇 |
2000年 | 7篇 |
1999年 | 7篇 |
1998年 | 11篇 |
1997年 | 9篇 |
1996年 | 11篇 |
1995年 | 9篇 |
1994年 | 9篇 |
1993年 | 10篇 |
1992年 | 6篇 |
1991年 | 2篇 |
1990年 | 6篇 |
1989年 | 3篇 |
1988年 | 3篇 |
1987年 | 3篇 |
1986年 | 3篇 |
1985年 | 8篇 |
1984年 | 3篇 |
1983年 | 3篇 |
1982年 | 1篇 |
1980年 | 1篇 |
1975年 | 2篇 |
排序方式: 共有1139条查询结果,搜索用时 218 毫秒
101.
102.
Receded near point of convergence as a predictor of mild cognitive impairment in the general geriatric population: results from a population-based study 下载免费PDF全文
Asgar Doostdar Hassan Hashemi Payam Nabovati Amir Asharlous Mehdi Khabazkhoob 《国际眼科》2023,16(4):623-629
AIM: To investigate the relationship between near point of convergence (NPC) and mild cognitive impairment (MCI) in the general elderly population.
METHODS: The present report is a part of the Tehran Geriatric Eye Study (TGES): a population-based cross-sectional study conducted on individuals 60 years of age and above living in Tehran, Iran using the multi-stage stratified random cluster sampling method. Cognitive status was assessed using the Persian version of the Mini-Mental State Examination (MMSE). All study participants underwent complete ocular examination including measurement of uncorrected and best-corrected visual acuity, objective and subjective refraction, cover testing, NPC measurement, and slit-lamp biomicroscopy.
RESULTS: The data of 1190 individuals were analyzed for this report. The mean age of the participants analyzed was 66.82±5.42 (60-92y) and 728 (61.2%) of them were female. Patients with MCI had a significantly more receded NPC compared to subjects with normal cognitive status (10.89±3.58 vs 7.76±2.71 cm, P<0.001). In the multivariable logistic regression model and in the presence of confounding variables, a receded NPC was statistically significantly associated with an increased risk of MCI (odds ratio: 1.334, 95% confidence interval: 1.263 to 1.410, P<0.001). According to receiver operating characteristic (ROC) analysis, a cut point NPC> 8.5 cm (area under the curve: 0.764, P<0.001) could predict the presence of MCI with a sensitivity and specificity of 70.9% and 69.5%, respectively.
CONCLUSION: A receded NPC can be clinically proposed as a predictor of MCI in older adults. It is recommended that elderly with a receded NPC>8.50 cm undergo detailed cognitive screening for a definite diagnosis of MCI. In this case, the necessary interventions can be carried out to slow down MCI progression to dementia. 相似文献
103.
Ahu PAKDEMRL Baak BAYRAM Erkan GÜVEN Hülya ELLDOKUZ 《Turkish Journal of Medical Sciences》2021,51(3):1253
Background/aimAnalysis of interventions for special patient groups is important for the planning of health services, especially emergency medical services. In this study, we aimed to evaluate emergency medical service (EMS) interventions for the elderly and determine the decisive factors affecting transfer to the hospital of EMS team over 2 years (2017 and 2018) in İzmir.Materials and methodsRecords of 112 emergency calls that were made between 2017 and 2018 followed up with interventions for patients aged 65 years and older were obtained from the 112 system. The reasons for the calls, outcomes, possible diagnoses of the patients, differences in time intervals and seasons, characteristics of the patients transferred to the hospital, and factors affecting the need for transfer to the hospital were investigated. Results A total of 176,104 elderly patients with a mean age of 78.02 ± 8.0 years required ambulance services, and out of them, 66% were transferred to the hospital. Transfer to the hospital was significantly associated with the event location, sex, time interval, international classification of diseases (ICD) codes, and physical examination findings. Conclusion Ambulance interventions are more frequently required in urban areas than in the countryside, and calls are mostly made during daytime hours and during winter months. The decision to transfer a patient to the hospital is based on the patient’s respiratory status, skin examination, state of consciousness, pulse, systolic blood pressure, call time, and the preliminary diagnosis of the crew. 相似文献
104.
105.
106.
《Gerontology & geriatrics education》2013,34(2):17-30
Abstract Using brief scenarios describing adult caregiver/elder parent interactions, college students made judgments about how justifiable aggressive behavior by caregivers were, the abusiveness of these behaviors, and the abusiveness of the behavior of the elderly parent. The extent of students' contact with their grandparents was obtained. Results indicate that judgments of abusiveness are context specific, and that senile or agitated elders were viewed as more abusive, and behaviors against them as more justified, than were more “helpless” elders. In addition, results indicate that students' involvement with grandparents has an effect on the judgments of abusiveness and the justifiability of caregiver behaviors toward elderly mothers. It is suggested that programs that promote interaction between younger and older persons should be encouraged in order to develop a heightened understanding between these age groups and to help relieve generational tensions that may exist. 相似文献
107.
Birgitta Sidenvall RNT PhD 《Journal of advanced nursing》1999,30(2):319-328
In a study of mealtimes in institutions for elderly people the organization of meals was found to be task-oriented rather than patient-oriented in ways which failed to meet the needs of patients. The aim of the current paper is to examine and explain the institutional organization of meals, drawing on Goffmans' theory of institutionalized culture, Elias' theory of civilization, Douglas' theory of purity and order, and Bourdieus' key-concept 'habitus'. The method entails a secondary analysis of previous research carried out in a rehabilitation and long-term hospital. This second analysis indicates that elderly patients coming to the ward with their individual meal customs were met by caregivers with an institutionalized culture. Meals in the ward were organized in line with the organization of family meals in society, and both the elderly people and the nurses strove towards civilized manners, purity and order. The demands implicit in these cultural practices kept the elderly patients silent. By failing into line, they suffered from their loss of habitus. In contrast nurses' habitus was accomplished by carrying out procedures automatically. Consequently, the combination of patients' lost habitus and nurses' working habitus resulted in defective nursing, where the purpose of nursing is the fulfilment of patients' social, personal and material needs. 相似文献
108.
Hideo Miyazaki Ryuji Shirahama Ichiroh Ohtani Naoko Shimada Tadamichi Takehara 《Community dentistry and oral epidemiology》1992,20(5):297-301
Oral health conditions, including dental conditions, temporomandibular joint (TMJ) conditions, denture status, and oral hygiene status, were assessed on 1908 institutionalized elderly people 65 yr of age and older at 29 of the 30 existing institutions in the city of Kitakyushu, Japan. The percentage of edentulous people was 27% in the 65-74-yr-old group, and increased with age to 56% in the 85 yr and older group. In dentate persons, the mean number of remaining teeth and DF teeth were 13.4 and 8.6, 9.5 and 6.8, and 8.4 and 6.5 in the groups aged 65-74 yr old, 75-84 yr old, and 85 yr and older, respectively. 81% of all the persons examined had no unusual symptoms in their TMJ. A clicking sound was the most frequent symptom (17%). Hygiene of both their teeth and dentures was very poor. Of all the subjects, 36% needed new full and/or partial denture(s), and 41% needed only repair. When the institutionalized elderly people were compared according to their general health condition, no clear differences were observed in percentage of edentulousness, mean number of remaining teeth and DF teeth, and TMJ conditions. However, a higher level of both untreated teeth and denture treatment needs, and poorer oral hygiene, was found in elderly people having poor general health than was observed in those with better health.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
109.
Marc J. Shapiro MD Robert A. Partridge MD Ilse Jenouri MD Maria Micalone MD David Gifford MD 《Academic emergency medicine》2001,8(1):78-81
OBJECTIVES: To describe injury types, patterns, and health status in independently functioning elder patients presenting to the emergency department (ED) after a minor traumatic injury; and 2) to assess short-term functional decline in this population at three-month follow-up. METHODS: This was a prospective observational study of elder patients (age > 65 years) discharged home from the ED after evaluation and treatment for an acute traumatic injury. Patients were excluded if they were not independently functioning or had an acute delirium. Type and mechanism of injury sustained during the ED visit were recorded. Functional status was assessed during the visit and three months later using activities of daily living (ADL) and instrumental activities of daily living (IADL) scores. RESULTS: One hundred six subjects were enrolled in the study. Mean age was 74.8 years. The most common injuries observed were contusion (n = 35, 33%, 95% CI = 24% to 42%), fractures (n = 28, 26%, 95% CI = 18% to 36%), lacerations (n = 20, 19%, 95% CI = 12% to 28%), and sprains (n = 12, 11%, 95% CI = 6% to 19%), which represented more than 90% of the injuries. Eighty-eight (83%) patients completed three-month follow up. Of these, 6 of 88 (6.82%, 95% CI = 3% to 14%) declined in their ADL scores and 20 of 88 (22.73%, 95% CI = 14% to 33%) declined in their IADL scores at three months. Primary injury type, specifically contusion, was more prevalent in patients who had a decline in ADL score, as compared with those who did not have a decline in ADL score (chi-square p<0.001). In addition, anatomic locations of injury were different between those patients with and without a decline in IADL scores (chi-square p = 0.008). Gender differences were also found; females were more likely to be injured by a slip, trip, or fall indoors (36 of 58, 62%) than outdoors (22 of 58, 38%); males injured by this mechanism were more likely to be injured outdoors (14 of 20, 70%) as opposed to indoors (6 of 20, 30%), chi-square p = 0.013. CONCLUSIONS: A significant proportion of functional elder patients with minor traumatic injury are at risk for short-term functional decline. Decline in ADL is related to injury type, while IADL decline is related to anatomic location of injury. Emergency physicians should consider initiating follow-up evaluation and possible intervention in highly functioning elders after minor traumatic injury. 相似文献
110.
Andre Strydom Angela Hassiotis Gill Livingston 《Journal of Applied Research in Intellectual Disabilities》2005,18(3):229-235
Background Older people with intellectual disabilities (ID) are a growing population but their age‐related needs are rarely considered and community services are still geared towards the younger age group. We aimed to examine the mental health and social care needs of this new service user group. Methods We identified all adults with ID without Down syndrome (DS) aged 65+ living in the London boroughs of Camden and Islington. The Psychiatric Assessment Schedule for Adults with a Developmental Disability (PASADD) checklist was used to detect psychiatric disorder, the Vineland behaviour scale (maladaptive domain) for problem behaviours and the Dementia Questionnaire for persons with Mental Retardation (DMR) to screen for dementia. Carers reported health problems and disability. Needs were measured with the Camberwell Assessment of Need for adults with Intellectual Disabilities (CANDID‐S). Results A total of 23 older people with ID (13 had mild ID and nine more severe ID) and their carers participated in the survey. In which, 74% had one or more psychiatric symptoms; 30% were previously known with a diagnosis of mental illness. One‐third of the older people screened positive for dementia (range: 17–44%, depending on sensitivity of DMR scores used). Three quarters of the group had physical health problems, 74% had poor sight, 22% had hearing loss and 30% had mobility problems. Carers rated unmet needs for accommodation (22%), day activities, and eyesight and hearing. The people with ID rated unmet needs to be social relationships (44%), information and physical health. Conclusion Older people with ID without DS have considerable prevalence of health problems and psychiatric disorders, including symptoms of functional decline and dementia. Such symptoms are often not recognised and further research into their needs is a priority. 相似文献