全文获取类型
收费全文 | 3909篇 |
免费 | 314篇 |
国内免费 | 102篇 |
专业分类
耳鼻咽喉 | 24篇 |
儿科学 | 82篇 |
妇产科学 | 18篇 |
基础医学 | 606篇 |
口腔科学 | 27篇 |
临床医学 | 476篇 |
内科学 | 738篇 |
皮肤病学 | 46篇 |
神经病学 | 316篇 |
特种医学 | 129篇 |
外科学 | 493篇 |
综合类 | 417篇 |
一般理论 | 1篇 |
预防医学 | 310篇 |
眼科学 | 19篇 |
药学 | 361篇 |
7篇 | |
中国医学 | 154篇 |
肿瘤学 | 101篇 |
出版年
2024年 | 14篇 |
2023年 | 85篇 |
2022年 | 123篇 |
2021年 | 189篇 |
2020年 | 144篇 |
2019年 | 158篇 |
2018年 | 151篇 |
2017年 | 148篇 |
2016年 | 158篇 |
2015年 | 115篇 |
2014年 | 208篇 |
2013年 | 370篇 |
2012年 | 200篇 |
2011年 | 232篇 |
2010年 | 185篇 |
2009年 | 199篇 |
2008年 | 183篇 |
2007年 | 174篇 |
2006年 | 139篇 |
2005年 | 150篇 |
2004年 | 95篇 |
2003年 | 99篇 |
2002年 | 97篇 |
2001年 | 70篇 |
2000年 | 63篇 |
1999年 | 50篇 |
1998年 | 50篇 |
1997年 | 54篇 |
1996年 | 57篇 |
1995年 | 42篇 |
1994年 | 51篇 |
1993年 | 31篇 |
1992年 | 25篇 |
1991年 | 20篇 |
1990年 | 27篇 |
1989年 | 13篇 |
1988年 | 15篇 |
1987年 | 15篇 |
1986年 | 6篇 |
1985年 | 38篇 |
1984年 | 17篇 |
1983年 | 12篇 |
1982年 | 14篇 |
1981年 | 8篇 |
1980年 | 11篇 |
1979年 | 7篇 |
1978年 | 5篇 |
1975年 | 2篇 |
1973年 | 2篇 |
1972年 | 2篇 |
排序方式: 共有4325条查询结果,搜索用时 15 毫秒
71.
G. Paraskevas B. Papaziogas O. Ioannidis P. Kitsoulis S. Spanidou 《Acta chirurgica Belgica》2013,113(4):507-509
The aim of our study is to present a case of double common bile duct. Specifically, we found a common bile duct that was divided into two distinct ducts, one the main and the other the accessory duct, during its course downwards. The two bile ducts had a parallel course emerging from the common bile duct after its formation and reuniting just above the head of the pancreas. Finally, they drained into the second portion of the duodenum at the site of major duodenal papilla. This anomaly is of great importance because the duplication of the common bile duct can lead to severe intraoperative injury to one of the two common bile ducts, which can be mistaken for the cystic duct and be ligated. Moreover, we present the relative international literature and the clinical significance of our finding. 相似文献
72.
《Expert Review of Clinical Immunology》2013,9(4):381-390
Common variable immunodeficiency (CVID) is a primary immunological disease with variable severity, ranging from mild forms of infections to chronic progressive complications. The hallmark of this disorder is hypogammaglobulinemia due to an unknown molecular defect in immune regulation. The primary clinical manifestations are recurrent infections that may lead to structural damage of affected organs. Adequate intravenous immunoglobulin (Ig) therapy has dramatically changed the prognosis of this disorder, and the advent of home subcutaneous Ig therapy has further improved the quality of life of these patients. Aberrant T-cell functions predispose to autoimmune, inflammatory and lymphoproliferative complications, as well as malignancies in a variable percentage of CVID patients. Immunosuppressive anti-inflammatory therapies and chemotherapy are used, although always in conjunction with adequate replacement Ig therapy and adjunct antimicrobial prophylaxis. Any organ can be involved and therefore a multidisciplinary approach to the management of this disorder is essential. 相似文献
73.
Bora KocServet Karahan M.D. Gokhan AdasFirat Tutal M.D. Hakan GuvenAyhan Ozsoy M.D. 《American journal of surgery》2013
Background
Endoscopic retrograde cholangiopancreatography and laparoscopic common bile duct exploration are safe and efficient methods that have recently been used for the treatment of bile duct stones. The aim of this study was to compare the efficacy, safety, and surgical outcomes of the laparoscopic common bile duct exploration plus laparoscopic cholecystectomy (LCBDE+LC) and endoscopic retrograde cholangiopancreatography plus laparoscopic cholecystectomy (ERCP+LC).Methods
One hundred twenty patients were prospectively randomized into 2 groups: LCBDE with LC in a single intervention and LC after ERCP.Results
The success rate of the LCBDE+LC group (96.5%) was found to be higher than for the ERCP+LC group (94.4%). Complication rates of the LCBDE+LC and ERCP+LC group were 7% and 11.1%, respectively. Complications requiring ERCP in the postoperative period after LCBDE+LC have been noted in 3.5% of cases.Conclusions
Laparoscopic CBD exploration provides an alternative therapeutic approach that has less morbidity, is cost-effective, and allows earlier recovery with a reduced period of short-term disability. 相似文献74.
Helen Aspland Gillian E. Hardy Michael Barkham William Stiles 《Psychotherapy research》2013,23(6):699-710
Abstract An initial ideal, rational model of alliance rupture and rupture resolution provided by cognitive–behavioral therapy (CBT) experts was assessed and compared with empirical observations of ruptures and their resolution in two cases of successful CBT. The initial rational model emphasized nondefensive acknowledgment and exploration of the rupture. Results indicated differences between what therapists think they should do to resolve ruptures and what they actually do and suggested that the rational model should be expanded to emphasize client validation and empowerment. Therapists’ ability to attend to ruptures emerged as an important clinical skill. 相似文献
75.
76.
Tessa Katherine Mooney Robert Gallop Rachel A. Mack Paul Crits-Christoph 《Psychotherapy research》2013,23(5):565-577
AbstractObjective: The current investigation examined the relation between credibility ratings for adult psychotherapies and a variety of patient factors as well as the relation between credibility ratings and subsequent symptom change. Method: A pooled study database that included studies evaluating the efficacy of cognitive and psychodynamic therapies for a variety of disorders was used. For all studies, a three-item credibility scale was administered at session 2. Patient variables at baseline were used to predict early treatment credibility. Results: Early symptom improvement, age, education, and expectation of improvement were all significantly predictive of credibility scores at session 2. In one combined multiple regression model controlling for treatment, study, and early symptom change, age, education, and expectation of improvement remained significantly predictive of credibility scores. Credibility was predictive of subsequent symptom change even when controlling for age, education, expectation of improvement, and early symptom improvement. Conclusions: These findings suggest that age and education, in addition to expectations of improvement and the amount of early symptom improvement, may influence the patient's perceptions of the credibility of a treatment rationale early in the treatment process and that credibility ratings predict subsequent symptom change. 相似文献
77.
78.
Terry S. Trepper Sophia Treyger Jenifer Yalowitz Jeff Ford 《Journal of family psychotherapy》2013,24(1):34-53
The purpose of this article is to describe the use of solution-focused brief therapy (SFBT) as an approach to sex therapy. SFBT has been used to treat most clinical problems and populations, but until now has not been offered as an approach to sexual problems. This article describes SFBT and discusses its applications to sex therapy. A case example is included. 相似文献
79.
Gender differences in maximum voluntary lip-closing force during lip pursing in healthy young adults
Murakami M Adachi T Nakatsuka K Kato T Oishi M Masuda Y 《Journal of oral rehabilitation》2012,39(6):399-404
The objectives of this study were to quantitatively evaluate the gender differences in the lip-closing force (LCF) generated during pursing-like lip-closing movement using a multidirectional LCF measurement system in healthy young adults. In 40 healthy subjects (20 women, 20 men; median age = 26·5 years, range = 22-41 years), LCF was recorded in eight directions during the performance of a voluntary pursing-like lip-closing task in four measurement sessions. The correlations between the total sum of the forces generated in all eight directions [total LCF (TLCF)] and each directional LCF (DLCF) and those between opposing DLCF were statistically analysed. The TLCF obtained from the highly reproducible measurements acquired in the four different sessions was normally distributed in both genders. The TLCF in men was significantly greater than that in women. Among the eight pairs of opposing DLCF, seven pairs of opposing DLCF showed significant correlations in men, while five pairs were significantly correlated in women. In men, no significant difference was observed between opposing DLCF; however, three pairs of opposing DLCF were significantly different in women. The present results quantitatively indicate that there are gender differences in the magnitude and directional specificity of the LCF produced during pursing-like lip-closing movement in healthy young adults. 相似文献
80.
Avinash Pillutla Mack P. Hendrix Jonathan Ha 《Journal of vascular and interventional radiology : JVIR》2019,30(7):1075-1080
A retrospective analysis of endovenous glue-closure therapy (EVGC) performed in 76 greater saphenous veins (GSVs) from February 2016 to December 2017 was conducted to assess the incidence and characteristics of endovenous glue-induced thrombosis (EGIT), a phenomenon unique to nonthermal EVGC for GSV insufficiency. Kabnick and Lawrence classifications for endovenous heat-induced thrombosis were adopted. Seven instances of EGIT were detected among 54 patients (13%), with median/mode Kabnick and Lawrence classifications of 2/2 and 4/5, respectively. EGIT resolved with observation within an average of 5.2 wk after detection (range, 2–8 wk) without deep vein thrombosis or pulmonary embolism. EGIT was associated with significantly greater mean age (+7.75 y; P = .0308). 相似文献