全文获取类型
收费全文 | 34787篇 |
免费 | 2445篇 |
国内免费 | 57篇 |
专业分类
耳鼻咽喉 | 309篇 |
儿科学 | 1224篇 |
妇产科学 | 991篇 |
基础医学 | 4490篇 |
口腔科学 | 454篇 |
临床医学 | 4592篇 |
内科学 | 6238篇 |
皮肤病学 | 510篇 |
神经病学 | 3752篇 |
特种医学 | 629篇 |
外国民族医学 | 4篇 |
外科学 | 3135篇 |
综合类 | 353篇 |
一般理论 | 48篇 |
预防医学 | 4791篇 |
眼科学 | 517篇 |
药学 | 2328篇 |
中国医学 | 23篇 |
肿瘤学 | 2901篇 |
出版年
2024年 | 44篇 |
2023年 | 306篇 |
2022年 | 559篇 |
2021年 | 1197篇 |
2020年 | 718篇 |
2019年 | 1103篇 |
2018年 | 1220篇 |
2017年 | 873篇 |
2016年 | 1020篇 |
2015年 | 1055篇 |
2014年 | 1379篇 |
2013年 | 1957篇 |
2012年 | 2807篇 |
2011年 | 3041篇 |
2010年 | 1570篇 |
2009年 | 1334篇 |
2008年 | 2446篇 |
2007年 | 2432篇 |
2006年 | 2237篇 |
2005年 | 2092篇 |
2004年 | 1889篇 |
2003年 | 1634篇 |
2002年 | 1644篇 |
2001年 | 243篇 |
2000年 | 216篇 |
1999年 | 226篇 |
1998年 | 318篇 |
1997年 | 253篇 |
1996年 | 175篇 |
1995年 | 188篇 |
1994年 | 140篇 |
1993年 | 121篇 |
1992年 | 103篇 |
1991年 | 69篇 |
1990年 | 82篇 |
1989年 | 76篇 |
1988年 | 58篇 |
1987年 | 54篇 |
1986年 | 53篇 |
1985年 | 43篇 |
1984年 | 38篇 |
1983年 | 38篇 |
1982年 | 29篇 |
1981年 | 28篇 |
1980年 | 16篇 |
1979年 | 12篇 |
1978年 | 12篇 |
1977年 | 15篇 |
1974年 | 11篇 |
1967年 | 11篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
Elizabeth A. Mosley PhD MPH Amy J. Schulz PhD MPH MSW Lisa H. Harris MD PhD Barbara A. Anderson PhD 《Women & health》2020,60(7):806-820
ABSTRACT Abortion is legal in South Africa, but negative abortion attitudes remain common and are poorly understood. We used nationally representative South African Social Attitudes Survey data to analyze abortion attitudes in the case of fetal anomaly and in the case of poverty from 2007 to 2016 (n = 20,711; ages = 16+). We measured correlations between abortion attitudes and these important predictors: religiosity, attitudes about premarital sex, attitudes about preferential hiring and promotion of women, and attitudes toward family gender roles. Abortion acceptability for poverty increased over time (b = 0.05, p < .001), but not for fetal anomaly (b = ?0.008, p = .284). Highly religious South Africans reported lower abortion acceptability in both cases (Odds Ratio (OR)anomaly = 0.85, p = .015; ORpoverty = 0.84, p = .02). Premarital sex acceptability strongly and positively predicted abortion acceptability (ORanomaly = 2.63, p < .001; ORpoverty = 2.46, p < .001). Attitudes about preferential hiring and promotion of women were not associated with abortion attitudes, but favorable attitudes about working mothers were positively associated with abortion acceptability for fetal anomaly ((ORanomaly = 1.09, p = .01; ORpoverty = 1.02, p = .641)). Results suggest negative abortion attitudes remain common in South Africa and are closely tied to religiosity, traditional ideologies about sexuality, and gender role expectations about motherhood. 相似文献
2.
3.
Mhd Wasem Alsabbagh Dana Church Lisa Wenger John Papastergiou Lalitha Raman-Wilms Eric Schneider Nancy Waite 《Research in social & administrative pharmacy》2019,15(2):202-206
Background
One approach to boost influenza vaccination coverage has been to expand immunization authority. In 2012, the province of Ontario gave community pharmacists the authority to administer the influenza vaccine.Objective
This study investigates the perspectives of Ontario pharmacy patrons, who had not recently received this vaccine from a pharmacist, regarding this pharmacist service.Methods
A survey was administered in six Ontario community pharmacies to pharmacy patrons who had not received an influenza vaccination from a pharmacist during the previous year. The instrument included questions about influenza vaccination, and knowledge of and attitudes toward vaccines and pharmacist-administered immunization.Results
A total of 541 pharmacy patrons completed the survey (53.9% response rate). About one-third (30.5%) of respondents were not aware that pharmacists could give the influenza vaccine, with younger individuals being less likely to be aware (OR 0.48, 95% CI 0.29–0.77, p?<?0.05) and less likely to receive the vaccine annually (OR 0.28, 95% CI 0.19–0.42, p?<?0.05). Leading reasons respondents gave as to why they did not receive their influenza vaccine from a pharmacist included not wanting or feeling they needed to be immunized (41.6%) and being used to receiving the vaccine from a physician (16.5%). Concerns about the experience and training of pharmacists and lack of privacy in a community pharmacy were uncommon.Conclusion
Reduced awareness of the availability of pharmacist-provided influenza vaccine is still common. Pharmacists have a significant opportunity to address lack of awareness and vaccine hesitancy issues. They can promote this service to increase influenza vaccination rates among pharmacy patrons who do not utilize this professional service. 相似文献4.
5.
Lisa A. Lang DDS MS David C. Holmes DDS MS Craig Passon DDS MS Robert M. Trombly DDS JD Jeffrey D. Astroth DDS MSPH Arnold F. Tavel DMD 《Journal of prosthodontics》2003,12(3):206-210
Using complete denture treatment as an introduction to clinical patient care for dental students, the purposes of the Complete Denture Prosthodontics Transition Clinic at the University of Colorado School of Dentistry are to reduce the time lapse between the preclinical complete denture prosthodontics course and the first denture patient experience, and to encourage development of student self-confidence and skills. In the 2002 spring semester, faculty at the University of Colorado School of Dentistry initiated the Complete Denture Prosthodontics Transition Clinic for DS-II (second-year) dental students, as an introduction to clinical patient care. Each patient was assigned to a team of two dental students. Three Division of Prosthodontics faculty members staffed each clinic session, providing a student-to-faculty ratio of approximately 6.6:1 and a patient-to-faculty ratio of approximately 3.3:1. All DS-II students in the Class of 2004 delivered their first complete dentures no later than 8 months (average, 184 days) after the last day of the preclinical complete denture prosthodontics course. The time from the diagnostic appointment through the denture placement appointment averaged 39 days for patients treated in this program, compared with an average of 98 days or more for previous classes. The program was successful in achieving the goal of reducing the time lapse between the preclinical complete denture prosthodontics course and the first denture patient experience. 相似文献
6.
Critical care nurses within acute care settings are responsible for providing healthcare to a wide variety of patients and, consequently, knowledge regarding how to care for a patient with acute necrotizing fasciitis is imperative. A case study is presented to evidence the need for a multidisciplinary approach. Necrotizing fasciitis is defined and treatment options are presented. Caring for this patient is very challenging and demands a multidisciplinary team to coordinate all aspects of care to promote better patient outcomes. 相似文献
7.
8.
9.
Katherine Berry Richard Drake Catherine Stewart Lisa Marie Aitkin Jane Byrne Christine Barrowclough Nitin Purandare 《The American journal of geriatric psychiatry》2007,15(9):800-806
OBJECTIVE: To investigate whether orofacial tardive dyskinesia (OTD) is associated with frontal lobe dysfunction and whether either are related to the coping abilities independent of psychiatric symptoms in older people with psychotic disorders. METHODS: A total of 52 patients, aged over 65 years or over, who satisfied International Classification of Diseases, Tenth Revision criteria for psychotic disorders (F20-F29) were recruited into the study. OTD was measured using the Abnormal Involuntary Movements Scale and Waddington et al.'s (1993) criteria. Neuropsychological measures were specifically selected to assess different aspects of frontal function and coping was measured using a semistructured interview. Psychiatric symptoms were assessed using the Positive and Negative Syndrome Scale (PANSS). RESULTS: Patients with OTD showed more severe global cognitive impairment compared to patients without OTD. Group differences on measures of frontal lobe dysfunction were not maintained following adjustment for global cognitive impairment. Patients with OTD did not differ from patients without OTD on coping measures. Scores on the general psychopathology subscale of the PANSS, which includes symptoms associated with depression and anxiety, consistently predicted patients' negative perceptions of stressors and appraisals of coping, but cognitive impairment did not predict coping independent of symptoms. CONCLUSION: The association between coping and general psychopathology in older patients with psychosis warrants further investigation as both variables may be amenable to psychological interventions. 相似文献
10.