全文获取类型
收费全文 | 4715篇 |
免费 | 433篇 |
国内免费 | 10篇 |
专业分类
耳鼻咽喉 | 47篇 |
儿科学 | 137篇 |
妇产科学 | 117篇 |
基础医学 | 789篇 |
口腔科学 | 93篇 |
临床医学 | 527篇 |
内科学 | 943篇 |
皮肤病学 | 66篇 |
神经病学 | 476篇 |
特种医学 | 116篇 |
外科学 | 473篇 |
综合类 | 70篇 |
一般理论 | 8篇 |
预防医学 | 518篇 |
眼科学 | 122篇 |
药学 | 310篇 |
中国医学 | 7篇 |
肿瘤学 | 339篇 |
出版年
2023年 | 39篇 |
2022年 | 33篇 |
2021年 | 152篇 |
2020年 | 93篇 |
2019年 | 98篇 |
2018年 | 133篇 |
2017年 | 106篇 |
2016年 | 112篇 |
2015年 | 125篇 |
2014年 | 171篇 |
2013年 | 230篇 |
2012年 | 369篇 |
2011年 | 366篇 |
2010年 | 192篇 |
2009年 | 165篇 |
2008年 | 303篇 |
2007年 | 308篇 |
2006年 | 270篇 |
2005年 | 301篇 |
2004年 | 288篇 |
2003年 | 233篇 |
2002年 | 232篇 |
2001年 | 57篇 |
2000年 | 62篇 |
1999年 | 37篇 |
1998年 | 38篇 |
1997年 | 30篇 |
1996年 | 25篇 |
1995年 | 29篇 |
1994年 | 24篇 |
1993年 | 26篇 |
1992年 | 23篇 |
1991年 | 27篇 |
1990年 | 18篇 |
1989年 | 15篇 |
1988年 | 22篇 |
1987年 | 16篇 |
1986年 | 17篇 |
1985年 | 24篇 |
1984年 | 21篇 |
1983年 | 26篇 |
1982年 | 16篇 |
1981年 | 17篇 |
1980年 | 11篇 |
1979年 | 30篇 |
1978年 | 13篇 |
1977年 | 17篇 |
1975年 | 14篇 |
1972年 | 11篇 |
1971年 | 13篇 |
排序方式: 共有5158条查询结果,搜索用时 15 毫秒
1.
2.
Hui Xing Lau Sarah El-Heis Qai Ven Yap Yiong Huak Chan Cheryl Pei Ting Tan Neerja Karnani Karen Mei Ling Tan Elizabeth Huiwen Tham Anne Eng Neo Goh Oon Hoe Teoh Kok Hian Tan Johan Gunnar Eriksson Yap Seng Chong Mary Foong-Fong Chong Hugo Van Bever Bee Wah Lee Lynette P. Shek Keith M. Godfrey Evelyn Xiu Ling Loo 《Clinical and experimental allergy》2021,51(10):1346-1360
3.
4.
Robert K. Flamm Paul R. Rhomberg Amy A. Watters Kim Sweeney Evelyn J. Ellis-Grosse Dee Shortridge 《Diagnostic microbiology and infectious disease》2019,93(2):143-146
Fosfomycin and comparators were susceptibility tested against over 2200 contemporary clinical isolates from US medical centers. Fosfomycin was active against Enterobacterales (MIC50/90, 4/16?μg/mL), including multidrug-resistant isolates. Potent activity was exhibited against gram-positive organisms, including Staphylococcus aureus (MIC50/90, 4/8?μg/mL). Fosfomycin may provide a promising alternative option for treatment of infections where resistant bacteria may occur. 相似文献
5.
6.
Evelyn E. Nash Tara C. Henning Cau D. Pham Kevin Pettus Samera Sharpe Ellen N. Kersh 《Diagnostic microbiology and infectious disease》2019,93(4):369-371
Neisseria gonorrhoeae quickly develops drug resistance. Time-kill curves revealed that EDTA and TOL-463 inhibit growth similar to penicillin, ciprofloxacin, and azithromycin. Furthermore, synergistic and additive antimicrobial interactions occurred when EDTA and TOL-463 were combined with penicillin or azithromycin, respectively, suggesting that further investigations into these unconventional antimicrobials may be advantageous. 相似文献
7.
8.
9.
Renée T. Fortner Anika Hüsing Laure Dossus Anne Tjønneland Kim Overvad Christina C. Dahm Patrick Arveux Agnès Fournier Marina Kvaskoff Matthias B. Schulze Manuela Bergmann Antonia Trichopoulou Anna Karakatsani Carlo La Vecchia Giovanna Masala Valeria Pala Amalia Mattiello Rosario Tumino Fulvio Ricceri Carla H. van Gils Evelyn M. Monninkhof Catalina Bonet José Ramón Quirós Maria-Jose Sanchez Daniel-Ángel Rodríguez-Palacios Aurelio B Gurrea Pilar Amiano Naomi E. Allen Ruth C. Travis Marc J. Gunter Vivian Viallon Elisabete Weiderpass Elio Riboli Rudolf Kaaks 《International journal of cancer. Journal international du cancer》2020,147(5):1325-1333
Endometrial cancer (EC) incidence rates vary ~10-fold worldwide, in part due to variation in EC risk factor profiles. Using an EC risk model previously developed in the European EPIC cohort, we evaluated the prevention potential of modified EC risk factor patterns and whether differences in EC incidence between a European population and low-risk countries can be explained by differences in these patterns. Predicted EC incidence rates were estimated over 10 years of follow-up for the cohort before and after modifying risk factor profiles. Risk factors considered were: body mass index (BMI, kg/m2), use of postmenopausal hormone therapy (HT) and oral contraceptives (OC) (potentially modifiable); and, parity, ages at first birth, menarche and menopause (environmentally conditioned, but not readily modifiable). Modeled alterations in BMI (to all ≤23 kg/m2) and HT use (to all non-HT users) profiles resulted in a 30% reduction in predicted EC incidence rates; individually, longer duration of OC use (to all ≥10 years) resulted in a 42.5% reduction. Modeled changes in not readily modifiable exposures (i.e., those not contributing to prevention potential) resulted in ≤24.6% reduction in predicted EC incidence. Women in the lowest decile of a risk score based on the evaluated exposures had risk similar to a low risk countries; however, this was driven by relatively long use of OCs (median = 23 years). Our findings support avoidance of overweight BMI and of HT use as prevention strategies for EC in a European population; OC use must be considered in the context of benefits and risks. 相似文献
10.