全文获取类型
收费全文 | 22135篇 |
免费 | 1675篇 |
国内免费 | 86篇 |
专业分类
耳鼻咽喉 | 151篇 |
儿科学 | 762篇 |
妇产科学 | 516篇 |
基础医学 | 3206篇 |
口腔科学 | 326篇 |
临床医学 | 2737篇 |
内科学 | 4856篇 |
皮肤病学 | 478篇 |
神经病学 | 2343篇 |
特种医学 | 377篇 |
外科学 | 1987篇 |
综合类 | 126篇 |
一般理论 | 28篇 |
预防医学 | 2432篇 |
眼科学 | 240篇 |
药学 | 1513篇 |
中国医学 | 43篇 |
肿瘤学 | 1775篇 |
出版年
2023年 | 198篇 |
2022年 | 141篇 |
2021年 | 674篇 |
2020年 | 509篇 |
2019年 | 759篇 |
2018年 | 783篇 |
2017年 | 576篇 |
2016年 | 651篇 |
2015年 | 713篇 |
2014年 | 909篇 |
2013年 | 1189篇 |
2012年 | 1937篇 |
2011年 | 1943篇 |
2010年 | 1036篇 |
2009年 | 872篇 |
2008年 | 1512篇 |
2007年 | 1562篇 |
2006年 | 1539篇 |
2005年 | 1423篇 |
2004年 | 1312篇 |
2003年 | 1157篇 |
2002年 | 1012篇 |
2001年 | 129篇 |
2000年 | 76篇 |
1999年 | 125篇 |
1998年 | 147篇 |
1997年 | 102篇 |
1996年 | 96篇 |
1995年 | 117篇 |
1994年 | 82篇 |
1993年 | 83篇 |
1992年 | 40篇 |
1991年 | 43篇 |
1990年 | 40篇 |
1989年 | 47篇 |
1988年 | 33篇 |
1987年 | 21篇 |
1986年 | 31篇 |
1985年 | 25篇 |
1984年 | 39篇 |
1983年 | 26篇 |
1982年 | 24篇 |
1981年 | 25篇 |
1980年 | 19篇 |
1979年 | 12篇 |
1978年 | 14篇 |
1976年 | 16篇 |
1973年 | 12篇 |
1972年 | 9篇 |
1971年 | 10篇 |
排序方式: 共有10000条查询结果,搜索用时 62 毫秒
1.
2.
3.
Brandstetter Susanne Pawellek Maja Böhmer Merle M. Köninger Angela Melter Michael Kabesch Michael Apfelbacher Christian 《Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz》2022,65(12):1281-1288
Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz - Mit Beginn der Impfkampagne hat eine neue Phase der Bewältigung der Coronapandemie begonnen. Zulassung und Empfehlung... 相似文献
4.
Moreira Daniel C. Venkataraman Sujatha Subramanian Apurva Desisto John Balakrishnan Ilango Prince Eric Pierce Angela Griesinger Andrea Green Adam Eberhardt Charles G. Foreman Nicholas K. Vibhakar Rajeev 《Journal of neuro-oncology》2020,147(3):531-545
Journal of Neuro-Oncology - MYC-driven medulloblastomas are highly aggressive childhood tumors with dismal outcomes and a lack of new treatment paradigms. We identified that targeting replication... 相似文献
5.
6.
7.
Hedy S. Wald Jordan White Shmuel P. Reis Angela Y. Esquibel David Anthony 《Medical teacher》2019,41(2):152-160
Aim: Clerkship-specific interactive reflective writing (IRW)-enhanced reflection may enhance professional identity formation (PIF), a fundamental goal of medical education. PIF process as revealed in students? reflective writing (RW) has been understudied.Methods: The authors developed an IRW curriculum within a Family Medicine Clerkship (FMC) and analyzed students? reflections about challenging/difficult patient encounters using immersion-crystallization qualitative analysis.Results: The qualitative analysis identified 26 unique emergent themes and five distinct thematic categories (1. Role of emotions, 2. Role of cognition, 3. Behaviorally responding to situational context, 4. Patient factors, and 5. External factors) as well as an emergent PIF model from a directed content analysis. The model describes students? backgrounds, emotions and previous experiences in medicine merging with external factors and processed during student?patient interactions. The RWs also revealed that processing often involves polarities (e.g. empathy/lack of empathy or encouragement/disillusionment) as well as dissonance between idealized visions and lived reality.Conclusions: IRW facilitates and ideally supports grappling with the lived reality of medicine; uncovering a “positive hidden curriculum” within medical education. The authors propose engaging learners in guided critical reflection about complex experiences for meaning-making within a safe learning climate as a valuable way to cultivate reflective, resilient professionals with “prepared” minds and hearts for inevitable challenges of healthcare practice. 相似文献
8.
Angela J. Jacques-Tiura Deborah A. Ellis April Idalski Carcone Sylvie Naar Kathryn Brogan Hartlieb Elizabeth K. Towner Thomas N. Templin K.-L. Catherine Jen 《The Journal of adolescent health》2019,64(3):355-361
Objective
Successful weight loss interventions for African-Americans adolescents are lacking. Cognitive-behavioral interventions seek to develop weight loss skills (e.g., counting calories, goal setting, managing one's environment). Little is known about how well adolescents implement such skills in their daily lives. Study aims were to (1) examine weight loss skills utilization at midpoint and end of a 6-month cognitive-behavioral/motivational interviewing weight loss sequential multiple assignment randomized trial (SMART), and (2) determine if greater skill utilization predicted weight loss at treatment end and 3 months post-treatment.Method
One hundred and eighty six African-Americans adolescents with obesity and their caregiver were first randomly assigned to complete 3 months of cognitive-behavioral and motivational interviewing family-based weight loss treatment in their home or in the research office (Phase 1). Nonresponders (i.e., those who lost < 3% of initial weight, n?=?161) were rerandomized to 3 months of continued skills training (n?=?83) or contingency management (n?=?78) for Phase 2; responders were allocated to 3 months of relapse prevention (n?=?20). Adolescents’ frequency of weight loss skills utilization was assessed via questionnaire at treatment midpoint and end.Results
Higher treatment attendance was associated with better skill utilization. Higher skill utilization was associated with more weight loss at treatment end, whereas higher baseline confidence was associated with more weight loss at follow-up.Conclusions
This study indicates the importance of attending weight loss intervention sessions to develop and strengthen weight loss skills in African-American adolescents with obesity, and strengthening confidence to use such skills for continued weight loss. 相似文献9.
Zumel-Marne Angela Kundi Michael Castaño-Vinyals Gemma Alguacil Juan Petridou Eleni Th Georgakis Marios K. Morales-Suárez-Varela Maria Sadetzki Siegal Piro Sara Nagrani Rajini Filippini Graziella Hutter Hans-Peter Dikshit Rajesh Woehrer Adelheid Maule Milena Weinmann Tobias Krewski Daniel ′t Mannetje Andrea Momoli Franco Lacour Brigitte Mattioli Stefano Spinelli John J. Ritvo Paul Remen Thomas Kojimahara Noriko Eng Amanda Thurston Angela Lim Hyungryul Ha Mina Yamaguchi Naohito Mohipp Charmaine Bouka Evdoxia Eastman Chelsea Vermeulen Roel Kromhout Hans Cardis Elisabeth 《Journal of neuro-oncology》2020,147(2):427-440
Journal of Neuro-Oncology - We used data from MOBI-Kids, a 14-country international collaborative case–control study of brain tumors (BTs), to study clinical characteristics of the tumors in... 相似文献
10.