全文获取类型
收费全文 | 2033篇 |
免费 | 71篇 |
国内免费 | 81篇 |
专业分类
耳鼻咽喉 | 27篇 |
儿科学 | 57篇 |
妇产科学 | 21篇 |
基础医学 | 155篇 |
口腔科学 | 69篇 |
临床医学 | 219篇 |
内科学 | 560篇 |
皮肤病学 | 40篇 |
神经病学 | 77篇 |
特种医学 | 298篇 |
外科学 | 272篇 |
综合类 | 33篇 |
预防医学 | 68篇 |
眼科学 | 66篇 |
药学 | 114篇 |
中国医学 | 4篇 |
肿瘤学 | 105篇 |
出版年
2023年 | 8篇 |
2022年 | 11篇 |
2021年 | 15篇 |
2020年 | 12篇 |
2019年 | 16篇 |
2018年 | 25篇 |
2017年 | 19篇 |
2016年 | 29篇 |
2015年 | 28篇 |
2014年 | 34篇 |
2013年 | 58篇 |
2012年 | 68篇 |
2011年 | 69篇 |
2010年 | 61篇 |
2009年 | 77篇 |
2008年 | 42篇 |
2007年 | 88篇 |
2006年 | 63篇 |
2005年 | 80篇 |
2004年 | 55篇 |
2003年 | 64篇 |
2002年 | 73篇 |
2001年 | 76篇 |
2000年 | 55篇 |
1999年 | 50篇 |
1998年 | 95篇 |
1997年 | 82篇 |
1996年 | 68篇 |
1995年 | 60篇 |
1994年 | 59篇 |
1993年 | 52篇 |
1992年 | 49篇 |
1991年 | 44篇 |
1990年 | 48篇 |
1989年 | 53篇 |
1988年 | 53篇 |
1987年 | 40篇 |
1986年 | 40篇 |
1985年 | 33篇 |
1984年 | 26篇 |
1983年 | 23篇 |
1982年 | 22篇 |
1981年 | 13篇 |
1980年 | 16篇 |
1979年 | 10篇 |
1978年 | 13篇 |
1977年 | 20篇 |
1976年 | 17篇 |
1975年 | 19篇 |
1972年 | 8篇 |
排序方式: 共有2185条查询结果,搜索用时 15 毫秒
1.
P Avalos-Peralta† A Herrera† JJ Ríos-Martín‡ AM Pérez-Bernal† D Moreno-Ramírez† F Camacho† 《Journal of the European Academy of Dermatology and Venereology》2006,20(1):79-83
We report the case of a patient with a 13-year history of pemphigus vulgaris (PV) treated with immunosuppressive agents, prednisone and mycophenolate mofetil who had developed lesions of Kaposi's sarcoma (KS) on a sole plaque of PV that had been previously treated with intralesional injections of steroids. The lesions were surgically removed and polymerase chain reaction (PCR) demonstrated human herpesvirus-8 (HHV-8) DNA. There were neither recurrences nor later dissemination of KS following gradual decrease of the immunosuppressive therapy. We suggest that the treatment with intralesional steroids may have influenced the local reactivation of a latent infection of the virus, determining the appearance of this localized KS. 相似文献
2.
Regulation of erythropoietin production 总被引:6,自引:0,他引:6
3.
CM Reid M. Nelson P. Beckinsale P. Ryan LMH Wing LJ Beilin MA Brown GLR Jennings CI Johnston J. Marley JJ McNeil TO Morgan J. Shaw ID Steven MJ West 《Clinical and experimental pharmacology & physiology》1997,24(5):370-373
1. The present study aimed to determine the feasibility of conducting a 5 year cardiovascular outcome trial of the treatment of 6000 elderly hypertensive patients in Australian general practices. 2. General practitioners (GPs) were invited to participate by mail and personal follow-up. Patient records were reviewed to identify subjects for a blood pressure (BP) screening programme. Blood pressure was measured on three occasions and eligible subjects were included if the average BP was 160 mmHg systolic or 90 mmHg diastolic if systolic BP was 140 mmHg. 3. Seven hundred and forty-one GPs were approached and 89 were enrolled in the study (12% of mail invites and 75% of those receiving a personal contact). In 16 practices where screening was completed, 82 000 records were reviewed to identify 4% patients eligible for screening. Twenty-two per cent of eligible subjects attended screening. Of 1938 subjects screened, 180 (9%) had BP 5=160/90 mmHg. Forty-seven percent of subjects (n = 916) were receiving antihypertensive therapy and 184 (20%) were withdrawn from therapy. One hundred and sixteen (63%) of these subjects had BP return to study entry levels within 6 weeks. Fifty-seven newly diagnosed and 81 previously treated subjects were randomized (7% of the screened population). 4. Based on the high participation rate of GPs, the response rate of patients to attend a BP screening programme and the 7% randomization to screening ratio for entry into the study, the ANBP2 pilot study has demonstrated that it is feasible to recruit subjects from Australian general practices to a cardiovascular outcome trial. 相似文献
4.
5.
During vitreoretinal surgery 14 aphakic patients with complicated retinal detachment were treated with 2 new techniques for surgical dilatation of a miotic and rigid pupil. In 4 cases, iris excision was not performed in the upper part of the pars pupillaris, as usual, but in the lower part. As a result, peripheral anterior synechiae due to silicone oil injection did not occur postoperatively. In the other 10 cases the pupil was temporarily stretched during the operation with 4 iris loop sutures. These sutures were laid in such a way that a retraction of the iris in the main directions of the 4 quadrants was made possible, thereby forming a large square pupil. Postoperatively, no iris damage was found in those cases where miosis had only developed during surgery. In the case of a preoperatively miotic and rigid pupil, stretching caused multiple small sphincter tears in most cases. A few weeks after surgery these patients again showed constriction of the pupil. Their pupils reacted to light, miotics, and mydriatics, but reactions were diminished. 相似文献
6.
Of 15 patients operated on for achalasia in the Department of General and Abdominal Surgery at the University of Mainz between September 1985 and April 1990, 14 were followed-up. All the patients had received an extramucous myotomy combined with Dor's semifundoplication; in twelve, one or more preoperative balloon dilatations had been performed. The results are reported in this study. The average age of the patients was 55.3 years (18 to 76 years), and the average follow-up period 21 months (six to 53 months). No postoperative complications were seen in any of the case. All patients reported appreciable improvements in their symptoms, six being completely symptom-free. Occasional dysphagia was reported in six cases, one patient had occasional, another frequent, nocturnal heartburn, which however had already presented preoperatively. In all seven cases submitted to postoperative radiological examination, the diameter of the esophagogastric junction was increased, and the diameter of the middle-third of the esophagus decreased. No gastroesophageal reflux or signs of inflammation were seen in any of the cases. The low complication rate and the high success rate despite prior balloon dilatation or bougienage support the use of Heller's operation combined with Dor's semifundoplication for the surgical treatment of achalasia after failed balloon dilatation. 相似文献
7.
Two cases of necrotizing sclerokeratitis following uncomplicated extracapsular cataract extraction are reported. Enucleation became necessary in the first case despite initially successful immunosuppressive treatment. In the second case, a stable condition was achieved by covering the affected area with a patch of lyophilized dura. Two years later, however, phthisis bulbi developed. 相似文献
8.
9.
SUMMARY A young patient presenting with splenomegaly and hypersplenism was inadvertently found to have selective IgA deficiency. There were no symptoms of immunodeficiency and the patient responded well to splenectomy, with return of blood counts to normal without adverse effects. No other cause for the hypersplenism was found. We postulate selective IgA deficiency as a cause of splenomegaly and hypersplenism. 相似文献
10.
Michael J. Eckardt PhD Robert R. Rawlings MS Barry I. Graubard MA Vivian Faden PhD Peter R. Martin MD Louis A. Gottschalk MD PhD 《Alcoholism, clinical and experimental research》1988,12(1):88-93
Commonly used neuropsychological tests were administered to 91 detoxified alcoholics at the beginning of treatment. Statistically significant relationships were observed between test scores and post treatment consumption determined 8 months after completing treatment for 72 patients. The results varied depending upon the particular measure of posttreatment consumption evaluated and the type of statistical analysis used. The most consistent relationships were often counter to the notion that increased neuropsychological performance is correlated with a more favorable treatment outcome. Neuropsychological evaluation is of limited clinical utility in predicting posttreatment alcohol consumption. 相似文献