全文获取类型
收费全文 | 2191篇 |
免费 | 171篇 |
国内免费 | 5篇 |
专业分类
耳鼻咽喉 | 31篇 |
儿科学 | 100篇 |
妇产科学 | 54篇 |
基础医学 | 339篇 |
口腔科学 | 18篇 |
临床医学 | 255篇 |
内科学 | 353篇 |
皮肤病学 | 29篇 |
神经病学 | 391篇 |
特种医学 | 56篇 |
外科学 | 228篇 |
综合类 | 13篇 |
一般理论 | 2篇 |
预防医学 | 221篇 |
眼科学 | 23篇 |
药学 | 124篇 |
中国医学 | 1篇 |
肿瘤学 | 129篇 |
出版年
2024年 | 4篇 |
2023年 | 39篇 |
2022年 | 80篇 |
2021年 | 134篇 |
2020年 | 67篇 |
2019年 | 99篇 |
2018年 | 90篇 |
2017年 | 76篇 |
2016年 | 72篇 |
2015年 | 50篇 |
2014年 | 93篇 |
2013年 | 101篇 |
2012年 | 161篇 |
2011年 | 149篇 |
2010年 | 77篇 |
2009年 | 95篇 |
2008年 | 147篇 |
2007年 | 127篇 |
2006年 | 148篇 |
2005年 | 122篇 |
2004年 | 99篇 |
2003年 | 80篇 |
2002年 | 71篇 |
2001年 | 13篇 |
2000年 | 10篇 |
1999年 | 14篇 |
1998年 | 17篇 |
1997年 | 14篇 |
1996年 | 8篇 |
1995年 | 12篇 |
1994年 | 13篇 |
1993年 | 11篇 |
1992年 | 12篇 |
1991年 | 2篇 |
1990年 | 6篇 |
1989年 | 7篇 |
1988年 | 3篇 |
1987年 | 2篇 |
1986年 | 4篇 |
1982年 | 3篇 |
1981年 | 7篇 |
1979年 | 3篇 |
1978年 | 2篇 |
1977年 | 4篇 |
1975年 | 2篇 |
1974年 | 3篇 |
1971年 | 2篇 |
1968年 | 2篇 |
1964年 | 1篇 |
1962年 | 1篇 |
排序方式: 共有2367条查询结果,搜索用时 31 毫秒
991.
Defined daily doses (DDD) do not accurately reflect opioid doses used in contemporary chronic pain treatment
下载免费PDF全文
![点击此处可从《Pharmacoepidemiology and drug safety》网站下载免费的PDF全文](/ch/ext_images/free.gif)
992.
993.
994.
Corbière Marc Lachance Jean-Philippe Jean-Baptiste Francelyne Hache-Labelle Catherine Riopel Gabrielle Lecomte Tania 《Journal of occupational rehabilitation》2022,32(3):505-514
Journal of Occupational Rehabilitation - Background Depression is one of the major causes for sick leave and loss of productivity at work. Many studies have investigated return to work (RTW)... 相似文献
995.
996.
997.
998.
Gabrielle Turner-McGrievy Charis R. Davidson Deborah L. Billings 《Human fertility (Cambridge, England)》2015,18(1):16-21
The Healthy Eating for Reproductive Health study was conducted among 18 (45% non-white) mostly obese (BMI 39.9 ± 6.1) women with polycystic ovary syndrome (PCOS) who were experiencing infertility and interested in losing weight. A variety of markers were measured at baseline: body mass index (BMI), diet, physical activity, eating behaviors (using an Eating Behavior Inventory, a questionnaire which assesses both positive and negative eating behaviors associated with weight status, with a higher score indicating adoption of eating behaviors which have been shown in prior weight-loss research to promote a healthy weight (EBI) and the Three-Factor Eating Questionnaire, which assesses cognitive and behavioral components of eating among overweight adults), and a quality of life (PCOS Health-Related Quality of Life (PCOSQ)) index, which assesses satisfaction around five ‘domains’: emotional health, presence of body hair, infertility, weight, and menstrual problems). A comparison group of overweight women without PCOS (n = 28) was used to examine differences in measured outcomes between women with and without PCOS. Participants’ habitual diets were high in fat and saturated fat and low in fiber, folate, and iron and contained significantly lower amounts of carbohydrate, iron, and whole grains compared with women without PCOS who had enrolled in a behavioral weight loss programme. Participants had a low EBI (indicating that most were not adopting eating behaviors associated with achieving a healthy weight), disinhibition (indicating participants had a tendency to overeat in the presence of highly palatable foods or were susceptible to emotional cues for eating, such as stress), and hunger scores (indicating participants did not report being susceptible to hunger, prompting overeating) and moderate dietary restraint (indicating they were not consistently attempting to restrict food intake consciously). PCOSQ scores were lowest for infertility and weight domains (indicating low satisfaction with current infertility and weight status); however all domains received low scores (emotional health, body hair, and menstrual problems). Higher energy intakes (kcal/day) were associated with a lower EBI score (r = ? 0.60, P = 0.02), lower dietary restraint (r =? 0.50, P = 0.04), and higher disinhibition (r = 0.63, P = 0.01). Greater energy expenditure (kcal/day) was associated with lower PCOSQ scores for body weight (r =?0.54, P = 002) and infertility (r =? 0.51, P = 0.003) domains. Results suggest that overweight women with PCOS-related infertility have poor dietary intake, particularly in terms of whole grains, fiber, and iron, and eating behaviors inconsistent with achieving a healthy body weight, as well as low scores for PCOS-related quality of life. 相似文献
999.
Tricia S. Williams Kyla P. McDonald Samantha D. Roberts Nomazulu Dlamini Gabrielle deVeber Robyn Westmacott 《Developmental neuropsychology》2017,42(5):309-322
This study examined the prevalence of learning and psychological diagnoses and associated neurological and personal-environmental risk factors following perinatal and childhood arterial ischemic stroke. In our sample of 126 children and youth, 52.4% received a diagnosis following their assessment. Specifically, 32% had a single diagnosis and 21% had two or more diagnoses. Learning disability, attention deficit-hyperactivity disorder, and intellectual disability were the most prevalent diagnoses. Associated risk factors varied by diagnosis with lower intellectual functioning being the common risk factor across categories. Seizure status was associated with intellectual disability whereas family history was related to ADHD and comorbid diagnoses. 相似文献
1000.