全文获取类型
收费全文 | 6907篇 |
免费 | 594篇 |
国内免费 | 6篇 |
专业分类
耳鼻咽喉 | 72篇 |
儿科学 | 241篇 |
妇产科学 | 153篇 |
基础医学 | 880篇 |
口腔科学 | 180篇 |
临床医学 | 589篇 |
内科学 | 1332篇 |
皮肤病学 | 262篇 |
神经病学 | 1129篇 |
特种医学 | 337篇 |
外国民族医学 | 7篇 |
外科学 | 888篇 |
综合类 | 106篇 |
一般理论 | 5篇 |
预防医学 | 497篇 |
眼科学 | 188篇 |
药学 | 319篇 |
中国医学 | 2篇 |
肿瘤学 | 320篇 |
出版年
2019年 | 58篇 |
2018年 | 79篇 |
2017年 | 70篇 |
2016年 | 90篇 |
2015年 | 87篇 |
2014年 | 113篇 |
2013年 | 199篇 |
2012年 | 233篇 |
2011年 | 233篇 |
2010年 | 138篇 |
2009年 | 143篇 |
2008年 | 220篇 |
2007年 | 232篇 |
2006年 | 245篇 |
2005年 | 231篇 |
2004年 | 228篇 |
2003年 | 214篇 |
2002年 | 214篇 |
2001年 | 232篇 |
2000年 | 257篇 |
1999年 | 221篇 |
1998年 | 86篇 |
1997年 | 82篇 |
1996年 | 77篇 |
1995年 | 75篇 |
1994年 | 66篇 |
1993年 | 62篇 |
1992年 | 220篇 |
1991年 | 195篇 |
1990年 | 185篇 |
1989年 | 171篇 |
1988年 | 160篇 |
1987年 | 158篇 |
1986年 | 158篇 |
1985年 | 147篇 |
1984年 | 130篇 |
1983年 | 108篇 |
1982年 | 70篇 |
1981年 | 80篇 |
1980年 | 60篇 |
1979年 | 113篇 |
1978年 | 68篇 |
1977年 | 62篇 |
1976年 | 65篇 |
1975年 | 71篇 |
1974年 | 72篇 |
1973年 | 96篇 |
1972年 | 76篇 |
1971年 | 73篇 |
1970年 | 61篇 |
排序方式: 共有7507条查询结果,搜索用时 468 毫秒
51.
Axial computed tomographic (CT) scan of the lumbosacral region was performed in 220 patients. The patient population was divided into three groups. The control group included 40 elderly patients without calcification of the ligamenta flava. The second group included 150 patients with posterior protrusion of the intervertebral discs. The third group included 30 patients with spinal stenosis. More than 80% of the patients of the second and the third group had calcification of the ligamenta flava. The diagnostic and practical importance of these findings is discussed. 相似文献
52.
Prematurity Stereotyping by Mothers of Premature Infants 总被引:2,自引:1,他引:1
Previous research has experimentally documented a prematuritystereotype in college students and mothers of full-term infants.The present investigation extends the scope of earlier studiesto mothers of premature infants. Thirty-two mothers of prematureinfants viewed four videotapes of 9-month-old full-term infants,each labeled either full-term or premature and either male orfemale. When infants were labeled premature the mothers perceivedthem as littler, finer featured, weaker, more passive, and slowerthan infants labeled full-term. The mothers also perceived labeledboys as bigger than labeled girls. Differences in stereotypingbetween the mothers in this study and both mothers of full-terminfants and college students are identified and discussed. Resultssuggest that mothers of premature infants expect deficits inpremature infants' physical development but not in prematureinfants' mental or social development. The likely sources andpossible self-fulfilling nature of these biased perceptionsare considered 相似文献
53.
P. VON DEN DRIESCH C. STEFFAN A. ZÖBE O.P. HORNSTEIN 《Clinical and experimental dermatology》1994,19(3):274-277
We report the case of a 39-year-old female patient suffering from Sweet's syndrome after an upper respiratory tract infection. Cyclosporin A at a dose of 10 mg/kg per day was given as initial treatment. Skin lesions and general malaise resolved within 9 days. The cyclosporin dose was decreased within 21 days, without recurrence of the eruption. Cyclosporin is a potent inhibitor of T lymphocytes, but affects granulocyte and monocyte functions as well. Success of treatment in our case shows that cyclosporin represents an alternative to steroid treatment in patients with Sweet's syndrome. 相似文献
54.
55.
56.
Christopher G Goetz Stanley Fahn Pablo Martinez-Martin Werner Poewe Cristina Sampaio Glenn T Stebbins Matthew B Stern Barbara C Tilley Richard Dodel Bruno Dubois Robert Holloway Joseph Jankovic Jaime Kulisevsky Anthony E Lang Andrew Lees Sue Leurgans Peter A LeWitt David Nyenhuis C Warren Olanow Olivier Rascol Anette Schrag Jeanne A Teresi Jacobus J Van Hilten Nancy LaPelle 《Movement disorders》2007,22(1):41-47
This article presents the revision process, major innovations, and clinimetric testing program for the Movement Disorder Society (MDS)-sponsored revision of the Unified Parkinson's Disease Rating Scale (UPDRS), known as the MDS-UPDRS. The UPDRS is the most widely used scale for the clinical study of Parkinson's disease (PD). The MDS previously organized a critique of the UPDRS, which cited many strengths, but recommended revision of the scale to accommodate new advances and to resolve problematic areas. An MDS-UPDRS committee prepared the revision using the recommendations of the published critique of the scale. Subcommittees developed new material that was reviewed by the entire committee. A 1-day face-to-face committee meeting was organized to resolve areas of debate and to arrive at a working draft ready for clinimetric testing. The MDS-UPDRS retains the UPDRS structure of four parts with a total summed score, but the parts have been modified to provide a section that integrates nonmotor elements of PD: I, Nonmotor Experiences of Daily Living; II, Motor Experiences of Daily Living; III, Motor Examination; and IV, Motor Complications. All items have five response options with uniform anchors of 0 = normal, 1 = slight, 2 = mild, 3 = moderate, and 4 = severe. Several questions in Part I and all of Part II are written as a patient/caregiver questionnaire, so that the total rater time should remain approximately 30 minutes. Detailed instructions for testing and data acquisition accompany the MDS-UPDRS in order to increase uniform usage. Multiple language editions are planned. A three-part clinimetric program will provide testing of reliability, validity, and responsiveness to interventions. Although the MDS-UPDRS will not be published until it has successfully passed clinimetric testing, explanation of the process, key changes, and clinimetric programs allow clinicians and researchers to understand and participate in the revision process. 相似文献
57.
Total knee arthroplasty in obese patients 总被引:6,自引:0,他引:6
We examined 182 patients (257 knees) who had had a total knee arthroplasty two to five six years earlier. The patients were grouped into five weight classes. Eighteen patients (twenty-seven knees) were considered moderately obese and twelve patients (twenty-seven knees), severely obese. The results in all but four knees were rated excellent or good. One patient needed a revision procedure for late infection, and the result was rated poor. Three results were rated fair. There was no discernible difference in the over-all scores among the five weight groups. However, 30 per cent of the knees of the moderately and severely obese patients had patellofemoral symptoms, whereas the incidence was 14 per cent in the other groups (p less than 0.03). No clear-cut association was found between obesity and either thrombophlebitis or complications related to the wound. 相似文献
58.
59.
We present here a psychodynamic model for treating brain-injured patients. In contrast to the common assumption that brain-injured patients remain in an emotional vacuum, our model uses dream material to enable a direct access to the psychic inner life of the patient. It thus refutes the view that these patients can only benefit from supportive psychotherapy. 相似文献
60.
S L Stern K N Dixon R A Sansone M D Lake E Nemzer D Jones 《Comprehensive psychiatry》1992,33(3):207-212
We assessed the lifetime prevalence and morbid risk of psychoactive substance use disorder (SUD; alcoholism and drug use disorder) in the first- and second-degree relatives, excluding children, of 34 female patients with anorexia nervosa (AN) and 34 age- and sex-matched controls who had no history of an eating disorder. Diagnoses of relatives were made blind to probands' diagnoses. The prevalence of SUD was 9% in both anorectic and control relatives, and the figures for morbid risk were 14% and 15%, respectively; these differences were nonsignificant. These results suggest that adolescent and adult women with AN do not possess many of the familial factors that predispose to the development of psychoactive SUD. 相似文献