全文获取类型
收费全文 | 1278314篇 |
免费 | 94425篇 |
国内免费 | 1992篇 |
专业分类
耳鼻咽喉 | 18225篇 |
儿科学 | 42316篇 |
妇产科学 | 37889篇 |
基础医学 | 187351篇 |
口腔科学 | 35460篇 |
临床医学 | 108478篇 |
内科学 | 252015篇 |
皮肤病学 | 26555篇 |
神经病学 | 99448篇 |
特种医学 | 50067篇 |
外国民族医学 | 366篇 |
外科学 | 197956篇 |
综合类 | 26562篇 |
现状与发展 | 1篇 |
一般理论 | 313篇 |
预防医学 | 93040篇 |
眼科学 | 29097篇 |
药学 | 98080篇 |
1篇 | |
中国医学 | 2505篇 |
肿瘤学 | 69006篇 |
出版年
2018年 | 11908篇 |
2015年 | 11693篇 |
2014年 | 16108篇 |
2013年 | 24540篇 |
2012年 | 33786篇 |
2011年 | 36236篇 |
2010年 | 21366篇 |
2009年 | 20158篇 |
2008年 | 35194篇 |
2007年 | 38181篇 |
2006年 | 38730篇 |
2005年 | 37999篇 |
2004年 | 36537篇 |
2003年 | 35536篇 |
2002年 | 35068篇 |
2001年 | 58131篇 |
2000年 | 59604篇 |
1999年 | 50707篇 |
1998年 | 14261篇 |
1997年 | 12821篇 |
1996年 | 13077篇 |
1995年 | 12352篇 |
1994年 | 11762篇 |
1993年 | 10869篇 |
1992年 | 40989篇 |
1991年 | 40366篇 |
1990年 | 39898篇 |
1989年 | 38713篇 |
1988年 | 36111篇 |
1987年 | 35353篇 |
1986年 | 33726篇 |
1985年 | 32140篇 |
1984年 | 23926篇 |
1983年 | 20821篇 |
1982年 | 12378篇 |
1981年 | 10929篇 |
1980年 | 10206篇 |
1979年 | 22637篇 |
1978年 | 15882篇 |
1977年 | 13735篇 |
1976年 | 12971篇 |
1975年 | 14204篇 |
1974年 | 16685篇 |
1973年 | 16078篇 |
1972年 | 15320篇 |
1971年 | 14231篇 |
1970年 | 13216篇 |
1969年 | 12732篇 |
1968年 | 11980篇 |
1967年 | 10481篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
41.
42.
43.
44.
Changhyun Kim B.S. Brittany G. Craiglow M.D. Kalman L. Watsky M.D. Richard J. Antaya M.D. 《Pediatric dermatology》2015,32(4):e161-e162
A 17‐year‐old boy presented with recurring severe dermatitis of the face of 5‐months duration that resembled impetigo. He had been treated with several courses of antibiotics without improvement. Biopsy showed changes consistent with allergic contact dermatitis and patch testing later revealed sensitization to benzoyl peroxide, which the patient had been using for the treatment of acne vulgaris. 相似文献
45.
F. Fruzzetti G. Palla A. Sbrana T. Simoncini M. R. Sessa 《Gynecological endocrinology》2020,36(10):938-940
AbstractObjective: To understand the origin of extremely high gonadotropin levels in a perimenopausal woman.Methods: A 52-year-old woman with a 2?months of amenorrhea followed spontaneous menstrual cycles recovery was referred to our outpatient clinic with elevated follicle-stimulating hormone (FSH, 483 mUI/ml), luteinizing hormone (LH, 475 mUI/ml) and prolactin (PRL, 173?ng/ml). She was known to take levosulpiride. The gonadotropin levels did not fit with the clinical features.Results: A gonadotroph tumor was ruled out. Further analysis confirmed constantly high FSH, LH and PRL levels. The measurements were repeated using different analytical platforms with different results. After serial dilutions, nonlinearity was present suggesting an immunoassay interference. After post-polyethylene glycol recovery, hormone levels appeared in the normal range. Anti-goat antibodies were recognized in the serum of the patient.Conclusions: This case report shows a case of falsely abnormal high gonadotropin and PRL levels in a woman during menopause transition. In the clinical practice the evaluation of gonadotropin profile is not recommended at this age, but the abnormal levels stimulated further evaluation. An interference in the assay due to anti-goat antibodies resulted in abnormally high level of FSH and LH. A strict collaboration between clinicians and the laboratory is needed, when laboratory findings do not correspond to clinical findings. 相似文献
46.
47.
T. Wu L. G. Trahair M. J. Bound C. F. Deacon M. Horowitz C. K. Rayner K. L. Jones 《Diabetic medicine》2015,32(5):595-600
48.
49.
50.
Dupuytren’s disease with severe finger contractures and recurrent contractures following previous surgery often have extensive skin involvement. In these severe cases, excision of the diseased chord along with the involved skin is a good option to reduce the risk of recurrance. The resulting skin defect can be covered with a full thickness skin graft (FTSG) or a cross finger flap. Cross finger flaps have donor finger morbidity and hence a full thickness graft is usually preferred. The FTSG extending to the midlateral margins on both sides of the finger reduces the risk of joint contracture due to graft shrinkage. Once the FTSG is sutured in place, the standard practice is to compress and secure the graft to its recipient bed with a tie-over dressing and this can be time consuming. We present a simple dressing technique to secure the FTSG without the need for a tie-over dressing. 相似文献