全文获取类型
收费全文 | 40602篇 |
免费 | 2756篇 |
国内免费 | 135篇 |
专业分类
耳鼻咽喉 | 301篇 |
儿科学 | 1275篇 |
妇产科学 | 876篇 |
基础医学 | 5150篇 |
口腔科学 | 612篇 |
临床医学 | 4028篇 |
内科学 | 8213篇 |
皮肤病学 | 1067篇 |
神经病学 | 3781篇 |
特种医学 | 1316篇 |
外国民族医学 | 1篇 |
外科学 | 5463篇 |
综合类 | 496篇 |
一般理论 | 76篇 |
预防医学 | 3469篇 |
眼科学 | 1146篇 |
药学 | 2737篇 |
中国医学 | 43篇 |
肿瘤学 | 3443篇 |
出版年
2023年 | 252篇 |
2022年 | 448篇 |
2021年 | 852篇 |
2020年 | 533篇 |
2019年 | 771篇 |
2018年 | 893篇 |
2017年 | 740篇 |
2016年 | 775篇 |
2015年 | 917篇 |
2014年 | 1308篇 |
2013年 | 1807篇 |
2012年 | 2755篇 |
2011年 | 2721篇 |
2010年 | 1577篇 |
2009年 | 1383篇 |
2008年 | 2498篇 |
2007年 | 2558篇 |
2006年 | 2501篇 |
2005年 | 2484篇 |
2004年 | 2409篇 |
2003年 | 2257篇 |
2002年 | 2084篇 |
2001年 | 478篇 |
2000年 | 379篇 |
1999年 | 445篇 |
1998年 | 454篇 |
1997年 | 410篇 |
1996年 | 374篇 |
1995年 | 336篇 |
1994年 | 290篇 |
1993年 | 294篇 |
1992年 | 326篇 |
1991年 | 287篇 |
1990年 | 249篇 |
1989年 | 252篇 |
1988年 | 226篇 |
1987年 | 214篇 |
1986年 | 205篇 |
1985年 | 249篇 |
1984年 | 238篇 |
1983年 | 235篇 |
1982年 | 264篇 |
1981年 | 266篇 |
1980年 | 227篇 |
1979年 | 179篇 |
1978年 | 187篇 |
1977年 | 178篇 |
1976年 | 120篇 |
1975年 | 135篇 |
1974年 | 144篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
A G Lawrence E T Houang E Hiscock M B Wells E Colli M Scatigna 《Current medical research and opinion》1990,12(2):114-120
An open, randomized comparative clinical trial was performed in 153 patients suffering from symptomatic vaginal candidiasis confirmed by mycological tests. Patients were allocated at random into two groups: the first group (consisting of 75 subjects) was treated with a single vaginal ovule of fenticonazole (600 mg) and the second group (consisting of 78 subjects) was treated with a single vaginal tablet of clotrimazole (500 mg). Therapeutic efficacy was assessed by microbiological and clinical criteria 7 days and 1 month (when possible) after the single dose treatment. At the first follow-up visit, complete disappearance of the signs and symptoms or a highly significant reduction of their intensity was observed in both treatment groups. No significant difference was evident between the two drugs. At 7 days, the mycological tests gave negative results in 92% of the patients in the fenticonazole group and in 88.5% of the patients in the clotrimazole group. The difference between the two treatment groups was again not statistically significant. The second follow-up visit was performed in 55 (73.3%) patients of the fenticonazole group and in 52 (66.7%) patients of the clotrimazole group. The results indicate that 83.6% of patients in the fenticonazole group and 69.2% of patients in the clotrimazole group were still disease free at the time of this visit. Both drugs were well tolerated. Mild, local and short lasting side-effects were reported in only 5 cases of the group treated with fenticonazole.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
72.
Scott W. Powers Kelly C. Byars Monica J. Mitchell Susana R. Patton Teresa Schindler Margaret H. Zeller 《Children's Health Care》2003,32(4):297-311
This pilot study examined a behavioral treatment to increase calorie intake in toddlers with cystic fibrosis. Eight toddlers were randomly assigned to behavioral plus nutrition (BEH) or nutrition intervention (NTR) conditions. Calorie intake and weight were measured at pre- and posttreatment. The BEH group showed a trend for changes in calorie intake pre- to posttreatment (p = .07; 40% increase). Results for the BEH and NTR groups did not differ significantly. Most participants achieved weight gains consistent with normal growth. Seventy-five percent had not shown this pattern during the year prior to intervention. These results support the feasibility and potential for behavioral interventions in this age group. 相似文献
73.
The Relationship Between Daily Life Stress and Gastrointestinal Symptoms in Women with Irritable Bowel Syndrome 总被引:3,自引:0,他引:3
Rona L. Levy Kevin C. Cain Monica Jarrett Margaret M. Heitkemper 《Journal of behavioral medicine》1997,20(2):177-193
Research on irritable bowel syndrome (IBS), a functional disorder of the gastrointestinal (GI) system, has linked GI symptoms to stress. This study examined the relationship between daily stress and GI symptoms across women and within woman in IBS patients (n = 26), IBS nonpatients (IBS-NP; n = 23), and controls (n = 26), controlling for menstrual cycle phase. Women (ages 20–45) completed daily health diaries for two cycles in which they monitored daily GI symptoms and stress levels. The Life Event Survey (LES) was used as a retrospective measure of self-reported stress. The across-women analyses showed higher mean GI symptoms and stress in the IBS and IBS-NP groups relative to controls but no group differences in LES scores. The within-woman analyses found a significant and positive relationship between daily stress and daily symptoms in both the IBS-NP and the IBS groups. Controlling for menstrual cycle had no substantial impact on the results. 相似文献
74.
75.
Miguel J. Farolan M.D. Salve G. Ronan M.D. Lawrence M. Solomon M.D. Deborah S. Loeff M.D. 《Pediatric dermatology》1992,9(3):264-267
A 20-month-old Kuwaiti girl had manifestations of lipoid proteinosis, a rare autosomal recessive disorder seen more commonly in Caucasians. This condition is diagnosed based on clinical, histopathologic, and ultrastructural criteria. Its biochemical and genetic aspects are still poorly understood. 相似文献
76.
77.
Vincent B. Killeen Harry Reich Fran McGlynn Lawrence A. Virgilio Michael A. Krawitz Lisa Sekel 《JSLS, Journal of the Society of Laparoendoscopic Surgeons》1997,1(3):267-268
The third reported case of pelvic gliomatosis found within foci of endometriosis is documented 16 years after the removal of a benign cystic teratoma. Grossly at laparoscopy the lesions appear as typical deep fibrotic endometriotic implants. 相似文献
78.
79.
Alan B. Storrow MD Lawrence B. Stack MD Phred Petersen 《Academic emergency medicine》1994,1(5):454-462
In the emergency department, photography requires an expedient, portable, adaptable, and relatively simple camera system to take advantage of fleeting opportunities for recording visually educational material. These prerequisites are different from those for traditional medical photography, for which relatively plentiful time and advanced equipment are routinely available. Medical photography departments provide an invaluable service, but are rarely convenient for immediate or spontaneous emergency. department photographs. Although no single system or technique is optimal in all these areas, the authors find certain components and approaches work well. They review photographic equipment, paying attention to speed, ease of use, and quality of output. They also review simple techniques such as film choice, lighting, close-up photography, standardization, copy work, and radiographs. Attention to these details can help the inexperienced photographer obtain a system and begin to enjoy the rewards of effective photography in the emergency department. 相似文献
80.
Edward H.C. Wong MRCP Thomas W.H. Leung MRCP K.S. Lawrence Wong FRCP 《Journal of neuroimaging》2007,17(1):87-88
We report a 33-year-old man with seronegative arthritis who had an acute infarct at the left lentiform nucleus while taking etoricoxib and thalidomide regularly. Extensive investigations did not find any evidence of large artery atherosclerosis, vasculitis, cardioembolic source or anti-phospholipid antibodies. While it is possible that a short smoking history, hyperlipidemia, and the use of thalidomide could have contributed to the thrombosis of a small penetrator vessel, we postulated that the prolonged use of etoricoxib is another possible contributing factor. 相似文献