全文获取类型
收费全文 | 17618篇 |
免费 | 3442篇 |
国内免费 | 75篇 |
专业分类
耳鼻咽喉 | 262篇 |
儿科学 | 388篇 |
妇产科学 | 404篇 |
基础医学 | 1296篇 |
口腔科学 | 438篇 |
临床医学 | 5181篇 |
内科学 | 2853篇 |
皮肤病学 | 311篇 |
神经病学 | 1775篇 |
特种医学 | 388篇 |
外科学 | 2633篇 |
综合类 | 346篇 |
一般理论 | 8篇 |
预防医学 | 2306篇 |
眼科学 | 584篇 |
药学 | 762篇 |
中国医学 | 10篇 |
肿瘤学 | 1190篇 |
出版年
2023年 | 515篇 |
2022年 | 152篇 |
2021年 | 315篇 |
2020年 | 446篇 |
2019年 | 245篇 |
2018年 | 769篇 |
2017年 | 814篇 |
2016年 | 731篇 |
2015年 | 774篇 |
2014年 | 920篇 |
2013年 | 1044篇 |
2012年 | 616篇 |
2011年 | 671篇 |
2010年 | 720篇 |
2009年 | 828篇 |
2008年 | 542篇 |
2007年 | 617篇 |
2006年 | 569篇 |
2005年 | 531篇 |
2004年 | 544篇 |
2003年 | 451篇 |
2002年 | 439篇 |
2001年 | 483篇 |
2000年 | 392篇 |
1999年 | 478篇 |
1998年 | 382篇 |
1997年 | 362篇 |
1996年 | 404篇 |
1995年 | 294篇 |
1994年 | 292篇 |
1993年 | 227篇 |
1992年 | 365篇 |
1991年 | 357篇 |
1990年 | 306篇 |
1989年 | 299篇 |
1988年 | 292篇 |
1987年 | 277篇 |
1986年 | 257篇 |
1985年 | 182篇 |
1984年 | 175篇 |
1983年 | 140篇 |
1982年 | 117篇 |
1981年 | 107篇 |
1980年 | 97篇 |
1979年 | 134篇 |
1978年 | 116篇 |
1977年 | 98篇 |
1975年 | 96篇 |
1974年 | 130篇 |
1973年 | 114篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
61.
Neil Scott Gordon MSc Dip Coun Dip N Cert Ed RCNT RNT RMN Peter Wimpenny RGN BSc Cert Ed RNT 《Journal of advanced nursing》1996,23(3):479-486
This paper, written by two male nurse teachers, describes and analyses their experience of working in a nurse education culture permeated by the philosophy of business management The introduction of business management practices to nurse education is discussed as a reflection of the current political hegemony of market forces and individualism The authors discuss the implications for nurse teachers of being continually exposed to these politically motivated forces which increasingly provide the paradigm for service developments within the United Kingdom health services In discussing the impact of this exposure it is argued that at the personal level individual teachers are experiencing a degree of apathy and personal dissonance which undermines their professional value system, resulting in emotional distress and a crisis of identity It provides a critical reflection on the way organizational dynamics and power relations influence the subjective sense-making of individuals The authors use a multiplicity of perspectives, including those provided by individual psychology, power relations, feminism and personhood, to argue for the need to develop an alternative paradigm which is characterized by the valuing of individual persons, empathic sensitivity and the fostering of creativity been important to us from a personal and professional 相似文献
62.
63.
Orbital exenteration at the Mayo Clinic. 1967-1986 总被引:2,自引:0,他引:2
Orbital exenteration was performed in 102 patients at the Mayo Clinic during the 20-year period from 1967 through 1986. The surgical procedure was performed for mucormycosis in one patient and for pain and deformity after a severe facial burn in another; in the remaining 100 patients, exenteration was used to treat a neoplastic disorder. Although 19 different neoplasms were encountered, squamous cell carcinoma, basal cell carcinoma, and melanoma constituted 70% of the total. In 82 patients with no known residual tumor or metastases at operation, the 1-year survival rate was 88.6%, the 5-year rate was 56.8%, and the 5-year rate free of recurrence or metastases was 48.3%. In 18 patients with known residual tumor or metastases at exenteration, 55.0% were alive 1 year postoperatively, and the 5-year survival rate was 25.8%. Unusual findings in this series included two patients with metastatic basal cell carcinoma and one patient with a metastatic thyroid Hürthle cell carcinoma. 相似文献
64.
R Yassa C Nastase Y Camille M Henderson L Belzile F Beland 《The Journal of clinical psychiatry》1987,48(7):281-283
Although carbamazepine is known to cause hyponatremia, no previous reports have indicated an interaction between carbamazepine and a diuretic. Two patients are described who were treated with this combination and developed symptomatic hyponatremia, which cleared when both drugs were discontinued in one patient and when the diuretic was discontinued in the second patient. The possible mechanisms of action of carbamazepine-induced hyponatremia are discussed. 相似文献
65.
BACKGROUND: The maximum number of hair grafts that can be safely implanted in 1 cm2 is still debatable. To our knowledge, no previous report has addressed this issue in three dimensions, taking into account the size, the angle of the graft, and the intergraft distance. OBJECTIVES: To study the effect of the size and angle of the graft and the intergraft distance on dense packing. METHODS: Using a mathematical formula (the maximum number of hair grafts in 1 cm2 = 33 * cosine), the volume of the recipient area and the volume of the hair graft are calculated, assuming that the surface area of the recipient area is 1 cm2, the diameter of the hair graft is 1 mm, and the intergraft distance is 1.5 mm laterally and 1 mm anteriorly and posteriorly. RESULTS: The maximum number of hair grafts that could be implanted in 1 cm2 at a 90 angle in relation to the skin surface is 33 grafts, at a 60 angle is 28 grafts, and at a 30 angle is 16 grafts. CONCLUSION: The maximum number of hair grafts that can be implanted in any given recipient area depends on the graft size, the angle or direction of these grafts, and the intergraft distance. Where more space is allowed between the grafts, and the more acute the angle, the fewer hair grafts that can be implanted. 相似文献
66.
67.
Brendan McCormack BSc DPSN PGCEA RGN RMN Clinical Lecturer in Nursing 《Journal of advanced nursing》1992,17(2):187-197
The research describes how nursing staff on a general surgical ward in a district general hospital perceived the delivery method of nursing care in practice. The study design was based on ethnographic methods and data were collected by diary keeping and semi-structured interviews. An organizational method based on the principles of primary nursing had been implemented on the ward for 2 years prior to the study commencing. As well as talking in general terms about primary nursing, the nursing staff talked at some length about specific issues related to their practice. 相似文献
68.
69.
B. Shen MD Z. Younossi MD B. Dolmatch MD J. Newman MD M. Henderson MD J. Ong MD T. Gramlich MD M. Yamani MD 《The American journal of gastroenterology》2000,95(9):2607-2607
70.