全文获取类型
收费全文 | 198671篇 |
免费 | 2122篇 |
国内免费 | 169篇 |
专业分类
耳鼻咽喉 | 1350篇 |
儿科学 | 7152篇 |
妇产科学 | 3265篇 |
基础医学 | 19744篇 |
口腔科学 | 1964篇 |
临床医学 | 13724篇 |
内科学 | 37026篇 |
皮肤病学 | 1262篇 |
神经病学 | 18205篇 |
特种医学 | 9830篇 |
外科学 | 32594篇 |
综合类 | 2429篇 |
预防医学 | 18633篇 |
眼科学 | 3262篇 |
药学 | 10938篇 |
中国医学 | 663篇 |
肿瘤学 | 18921篇 |
出版年
2023年 | 144篇 |
2022年 | 299篇 |
2021年 | 511篇 |
2020年 | 295篇 |
2019年 | 383篇 |
2018年 | 22348篇 |
2017年 | 17672篇 |
2016年 | 19885篇 |
2015年 | 1391篇 |
2014年 | 1514篇 |
2013年 | 1568篇 |
2012年 | 8285篇 |
2011年 | 22416篇 |
2010年 | 19602篇 |
2009年 | 12210篇 |
2008年 | 20759篇 |
2007年 | 23035篇 |
2006年 | 2018篇 |
2005年 | 3760篇 |
2004年 | 4969篇 |
2003年 | 5952篇 |
2002年 | 4013篇 |
2001年 | 595篇 |
2000年 | 702篇 |
1999年 | 558篇 |
1998年 | 612篇 |
1997年 | 538篇 |
1996年 | 417篇 |
1995年 | 375篇 |
1994年 | 353篇 |
1993年 | 298篇 |
1992年 | 267篇 |
1991年 | 297篇 |
1990年 | 316篇 |
1989年 | 249篇 |
1988年 | 230篇 |
1987年 | 186篇 |
1986年 | 170篇 |
1985年 | 158篇 |
1984年 | 145篇 |
1983年 | 134篇 |
1982年 | 115篇 |
1981年 | 82篇 |
1980年 | 117篇 |
1979年 | 80篇 |
1978年 | 72篇 |
1977年 | 60篇 |
1976年 | 61篇 |
1938年 | 60篇 |
1932年 | 56篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
Debra L. Roter Richard M. Frankel Judith A. Hall David Sluyter 《Journal of general internal medicine》2006,21(1):28-34
Relationship-centered care reflects both knowing and feeling: the knowledge that physician and patient bring from their respective domains of expertise, and the physician’s and patient’s experience, expression, and perception of emotions during the medical encounter. These processes are conveyed and reciprocated in the care process through verbal and nonverbal communication. We suggest that the emotional context of care is especially related to nonverbal communication and that emotion-related communication skills, including sending and receiving nonverbal messages and emotional self-awareness, are critical elements of high-quality care. Although nonverbal behavior has received far less study than other care processes, the current review argues that it holds significance for the therapeutic relationship and influences important outcomes including satisfaction, adherence, and clinical outcomes of care. 相似文献
12.
杨娅 Thomas Bartel Loredana Latina Guido Caspari 王新房 Raimund Erbel 《华中科技大学学报(医学英德文版)》2002,22(2):158-163
Coronary flow reserve (CFR) has been used toassess coronary microcirculation and epicardial coro-nary stenoses[1— 3 ] . CFR is defined as the ratio ofcoronary flow under maximal coronary vasodilatationto coronary flow under resting conditions[4 ] .Whenthe cross- sectional area of epicardial coronary arteriesis constant,coronary flow velocity (CFV) ratios areequal to volume flow ratios.The most common method used clinically formeasuring CFVR is intracoronary Doppler flow(ICD) analysis re… 相似文献
13.
14.
15.
Xin Mei Jiang Akio Ohnishi Tatsunori Yamamoto Yoshiyuki Murai Akira Awaya Masato Ikeda 《Acta neuropathologica》1995,90(2):130-134
One of the pyrimidine compounds, 2-piperadino-6-methyl-5-oxo-5,6-dihydro(7H)pyrrolo[3,4-d]pyrimidine (MS-818), has neurotropic effects in vitro. Therefore, we studied the effect of MS-818 on the regeneration of the peroneal nerve in C57BL/6J mice after a crush injury. Two test groups, which received a daily intraperitoneal injection of 5 mg/kg or 10 mg/kg MS-818, respectively, were compared with controls, which received daily intraperitoneal injections of physiological saline, over a 14-day period. The maximum foot-width ratio (crushed side/uncrushed side) was obtained on days 1, 8 and 14 after the crush injury, and the various morphometric parameters were evaluated at both 5 and 10 mm distal to the proximal portion of the crush site. The significant effects of MS-818 included a larger maximum foot width (P<0.04) and a greater number of unmyelinated axons per nerve at both levels (P<0.003) in both test groups than in controls. MS-818 had no significant effects on body weight, the increase of total transverse fascicular area after the crush injury, the total number of myelinated fibers with their size distributions, or the number of nuclei of Schwann cells and macrophages. Therefore, we conclude that MS-818 promotes axonal sprouting and elongation after a crush injury in mice. 相似文献
16.
17.
18.
19.
Paul Hochstein Ulrich Glatzel Thomas Schmickal Andreas Wentzensen 《Trauma und Berufskrankheit》2002,4(2):s110-s114
The treatment of deep cartilage defects in load-bearing joints is a problem that still has no satisfactory solution. Full-thickness defects of the articular cartilage rarely heal spontaneously, usually leaving damage that can lead to early arthrosis. Techniques currently available for the treatment of chondral defects include abrasion, drilling, micro-fracturing, transplantation of tissue autografts and allografts, and cell transplantation. Osteochondral autograft transplantation is currently the only surgical cartilage repair technique known to lead to the formation of genuine hyaline articular cartilage and its retention at least in the medium term. The Draenert method, in which a water-cooled diamond bone-cutting system is used, is an effective procedure for resurfacing the joints affected by localised cartilaginous defects, even when there is also severe bone loss. Donor-side morbidity can be kept to a minimum by filling the defect caused by harvesting with a press-fit cylinder of cancellous bone covered with periosteum for protection. 相似文献
20.
Akira Sezai Motomi Shiono Mitsumasa Hata Akira Saito Tsutomu Hattori Shinji Wakui Masao Soeda Yuji Kasamaki Kohtaro Tokai Satoshi Saito Nanao Negishi Yukiyasu Sezai 《Annals of thoracic and cardiovascular surgery》2005,11(6):413-415
The Carpentier-Edwards pericardial bioprosthesis has been markedly improved in the long-term results and valve-related complications including valve dysfunction, compared to the previous generation bioprosthesis. We report a patient in whom transient prosthetic valve regurgitation and hemolysis occurred early after mitral valve replacement using a Carpentier-Edwards pericardial bioprosthesis and were resolved by preservative therapy. The patient was a 77-year-old female diagnosed with severe mitral valve stenosis and insufficiency. She underwent mitral valve replacement with a Carpentier-Edwards pericardial bioprosthesis. Opening and closing of the three leaflets looked good on intraoperative transesophageal echocardiography (TEE). The only prosthetic valve regurgitation was evident at the central region where the leaflets form coaptation, and no abnormal findings were seen. Serum lactate dehydrogenase (LDH) was decreased to 405 U/l after surgery. However, LDH again began to increase on the 3rd day after surgery and it increased to 1,830 U/l on the 14th day after surgery. Hemolytic urine was detected on 10th day after surgery. PVL was not detected, but moderate abnormal regurgitation from the outside of the stent pocket was detected on TEE. Revision of valve replacement was considered, but LDH thereafter to 393 U/l on 41st day after surgery. The TEE was repeated, and only a trace of central jet was detected without abnormal regurgitation, unlike the previous examination. The patient did not develop any complications thereafter and was discharged on 47th day after surgery. LDH was nearly normal at the time of discharge. 相似文献