全文获取类型
收费全文 | 41902篇 |
免费 | 5383篇 |
国内免费 | 196篇 |
专业分类
耳鼻咽喉 | 678篇 |
儿科学 | 941篇 |
妇产科学 | 844篇 |
基础医学 | 4339篇 |
口腔科学 | 1120篇 |
临床医学 | 6465篇 |
内科学 | 9084篇 |
皮肤病学 | 556篇 |
神经病学 | 3847篇 |
特种医学 | 1381篇 |
外科学 | 7255篇 |
综合类 | 714篇 |
一般理论 | 24篇 |
预防医学 | 3857篇 |
眼科学 | 1268篇 |
药学 | 2310篇 |
中国医学 | 80篇 |
肿瘤学 | 2718篇 |
出版年
2023年 | 584篇 |
2022年 | 238篇 |
2021年 | 777篇 |
2020年 | 684篇 |
2019年 | 716篇 |
2018年 | 1290篇 |
2017年 | 1245篇 |
2016年 | 1170篇 |
2015年 | 1261篇 |
2014年 | 1773篇 |
2013年 | 2220篇 |
2012年 | 2430篇 |
2011年 | 2466篇 |
2010年 | 1699篇 |
2009年 | 1788篇 |
2008年 | 2275篇 |
2007年 | 2354篇 |
2006年 | 2519篇 |
2005年 | 2471篇 |
2004年 | 2268篇 |
2003年 | 2284篇 |
2002年 | 2147篇 |
2001年 | 577篇 |
2000年 | 462篇 |
1999年 | 620篇 |
1998年 | 756篇 |
1997年 | 632篇 |
1996年 | 662篇 |
1995年 | 508篇 |
1994年 | 485篇 |
1993年 | 399篇 |
1992年 | 429篇 |
1991年 | 385篇 |
1990年 | 323篇 |
1989年 | 313篇 |
1988年 | 287篇 |
1987年 | 262篇 |
1986年 | 263篇 |
1985年 | 232篇 |
1984年 | 266篇 |
1983年 | 217篇 |
1982年 | 248篇 |
1981年 | 222篇 |
1980年 | 178篇 |
1979年 | 161篇 |
1978年 | 165篇 |
1977年 | 148篇 |
1976年 | 111篇 |
1974年 | 128篇 |
1973年 | 121篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
Gregor McWalter MA MSc Hugh Toner MA DipCouns MSc CPsychol Alison Corser BSc MPhil CPsychol Jenny Eastwood MBChB DipSocMed FRCPsych Mary Marshall MA DSA DASS Tony Turvey BSc MAppSci CPsychol 《Health & social care in the community》1994,2(4):213-219
The concept of need and the practice of needs assessment are both subject to a wide range of interpretations, to the likely detriment of individual assessments and to multidisciplinary working. Clear definition is important for individual assessment, for the development of multidisciplinary tools and in gathering planning information. The concept of need is clarified, firstly by distinguishing between need and the difficulties that engender it, and secondly through a taxonomy of need. These assist clear definitions of both need and needs assessment when linked with a consideration of the current help a person receives and a specification of the type of help required by a person to meet their needs. Such definitions have implications for the role of needs assessment in individual assessment, service evaluation, service management and planning and in the development of multidisciplinary needs assessment tools. 相似文献
92.
Over recent years the pharmacological treatment strategy for rheumatoid arthritis (RA) has changed. An early, aggressive approach has been adopted with a view to maintaining functional capacity. The changing role of nonsteroidal antiinflammatory agents is discussed in the light of the potential toxicity of this class of drugs. The current use of second-line agents is dealt with in depth and includes guidelines to patient monitoring. Particular attention has been paid to the growing use of cyclosporin A in the treatment of RA as this drug represents the newest, most potent, nonexperimental form of treatment. The questions of when to introduce second-line agents, who should receive treatment and how many drugs should be prescribed are all addressed in this review. The relative efficacy and toxicity of these agents is discussed and a treatment protocol is proposed. 相似文献
93.
J A SCUDAMORE MA MB BChir P J H Tooley MBBS MRCGP DRCOG R J Allcorn BSc DPhil MRPharmS 《International journal of clinical practice》1992,46(4):260-263
Vaginal candidosis is one of the most common infections of the vagina and the first accredited record of the disease appeared in 1849. Over the years the terms ‘candidiasis’ and ‘candidosis’ have been used, but it is generally accepted now that the terms are synonymous, and the term most commonly in use today is ‘candidosis’. Mainly caused by the yeast Candida albicans, the condition is characterised by intense inflammation of the vaginal mucosa and a curdy, off-white discharge; it is often associated with severe vulval itching and possibly burning pain. The severity of symptoms seems to vary greatly from patient to patient and the reason for this is unclear. It is suggested that in some patients there may be an element of hypersensitivity. Vaginal candidosis may occur in children but is most common in adults and only sometimes affects the elderly. The majority of women will suffer at least one attack of vaginal candidosis during their lifetime, and there are several predisposing factors such as diabetes, pregnancy and antibiotics. Some authorities consider the condition more frequent in those taking oral contraceptives or other hormones. 相似文献
94.
SUMMARY A case congenital dislocation of both knees and dislocation of the left hip in an infant whose mother had a chronic amniotic fluid leakage after mid-trimester amniocentesis. 相似文献
95.
96.
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
97.
98.
Hand-assisted laparoscopic nephroureterectomy for upper urinary tract transitional cell carcinoma. 总被引:1,自引:0,他引:1
Jay D Raman Michael A Palese Casey K Ng Stephen A Boorjian Douglas S Scherr Joseph J Del Pizzo R Ernest Sosa 《JSLS, Journal of the Society of Laparoendoscopic Surgeons》2006,10(4):432-438
OBJECTIVE: We report our experience with hand-assisted laparoscopic nephroureterectomy (HALN) for upper urinary tract transitional cell carcinoma and compare our results with a contemporary series of open nephroureterectomy (ON) performed at our institution. METHODS: Between August 1996 and May 2003, 90 patients underwent nephroureterectomy for upper-tract transitional cell carcinoma (TCC). Thirty-eight patients underwent HALN, while 52 had an ON. End-points of comparison included operative time, estimated blood loss (EBL), intraoperative and postoperative complications, length of hospital stay, pathologic grade and stage of tumor, and tumor recurrence. RESULTS: The mean patient age was 72.3 and 70.6 years in the ON and HALN groups, respectively. Mean operative duration was 243 minutes (ON) and 244 minutes (HALN), with an EBL of 478mL in the open group versus 191 mL in the hand-assisted group (P<0.001). No intraoperative complications occurred, but postoperative complications occurred in 4% and 11% of the ON and HALN groups, respectively (P=0.21). The mean hospital duration was 7.1 days (ON) versus 4.6 days (HALN) (P<0.01). No difference existed in the pathologic grade or stage distribution of urothelial tumors between the 2 groups. The mean follow-up was 51.0 months in the ON group and 31.7 months in the HALN group. Recurrence of urothelial carcinoma occurred in 50% of patients who underwent ON and 40% treated by HALN (P=0.38) at a median interval of 9.1 and 7.7 months, respectively, after surgery. CONCLUSION: Hand-assisted laparoscopic nephroureterectomy is an effective modality for the treatment of upper urinary tract urothelial carcinoma. Patients benefited from less intraoperative blood loss and a shorter hospitalization with an equivalent intermediate-term oncologic outcome compared with that of the open approach. 相似文献
99.
100.