全文获取类型
收费全文 | 45503篇 |
免费 | 3389篇 |
国内免费 | 169篇 |
专业分类
耳鼻咽喉 | 663篇 |
儿科学 | 1221篇 |
妇产科学 | 786篇 |
基础医学 | 5989篇 |
口腔科学 | 581篇 |
临床医学 | 4661篇 |
内科学 | 9595篇 |
皮肤病学 | 495篇 |
神经病学 | 4369篇 |
特种医学 | 1825篇 |
外科学 | 7570篇 |
综合类 | 839篇 |
现状与发展 | 1篇 |
一般理论 | 40篇 |
预防医学 | 3535篇 |
眼科学 | 594篇 |
药学 | 3117篇 |
中国医学 | 58篇 |
肿瘤学 | 3122篇 |
出版年
2023年 | 240篇 |
2022年 | 299篇 |
2021年 | 1164篇 |
2020年 | 658篇 |
2019年 | 1073篇 |
2018年 | 1301篇 |
2017年 | 872篇 |
2016年 | 1026篇 |
2015年 | 1238篇 |
2014年 | 1631篇 |
2013年 | 2167篇 |
2012年 | 3602篇 |
2011年 | 3666篇 |
2010年 | 2043篇 |
2009年 | 1831篇 |
2008年 | 3051篇 |
2007年 | 3132篇 |
2006年 | 3049篇 |
2005年 | 3087篇 |
2004年 | 2761篇 |
2003年 | 2609篇 |
2002年 | 2365篇 |
2001年 | 408篇 |
2000年 | 282篇 |
1999年 | 383篇 |
1998年 | 503篇 |
1997年 | 441篇 |
1996年 | 364篇 |
1995年 | 351篇 |
1994年 | 306篇 |
1993年 | 278篇 |
1992年 | 232篇 |
1991年 | 200篇 |
1990年 | 182篇 |
1989年 | 181篇 |
1988年 | 174篇 |
1987年 | 151篇 |
1986年 | 146篇 |
1985年 | 145篇 |
1984年 | 143篇 |
1983年 | 126篇 |
1982年 | 156篇 |
1981年 | 149篇 |
1980年 | 106篇 |
1979年 | 74篇 |
1978年 | 73篇 |
1977年 | 74篇 |
1976年 | 64篇 |
1975年 | 55篇 |
1973年 | 57篇 |
排序方式: 共有10000条查询结果,搜索用时 187 毫秒
141.
Patrick Sullivan 《Canadian Medical Association journal》1991,144(10):1211
142.
Summary Isolated angiitis of the central nervous system (IAC) was diagnosed in a 40-year-old Caucasian male by histological examination of a leptomeningeal biopsy specimen, and the exclusion of systemic inflammatory or infective disease. Therapy with prednisone 30 mg/day and cyclophosphamide 100 mg/day resulted in clinical and radiological improvement, which have been maintained for an 8-month follow-up period. Magnetic resonance imaging (MRI) showed lesions implicating involvement of specific penetrating vessels at the base of the brain, an unusual complication of IAC, and allowed an accurate MRI-clinical correlation. 相似文献
143.
W J Patrick D Carrington A A Armstrong A A Gibson G E Urquhart 《Scottish medical journal》1989,34(3):462-464
Over an eight year period 21 different viral strains excluding polioviruses were isolated in 44 (19%) of 237 cot deaths. The percentage of viral positive cases was significantly greater in over 16 week age groups and in cultures obtained less than 24 hours after death. 相似文献
144.
145.
146.
147.
148.
149.
Patrick Terheyden Jürgen C. Becker Christa Lurz George J. Kahaly Eva‐B. Brcker 《Journal der Deutschen Dermatologischen Gesellschaft》2003,1(1):30-35
Background: Scleromyxoedema is a rare disease of unknown aetiology that is characterized by deposition of mucin and sclerotic induration of the skin; it is associated with paraproteinaemia. Patients suffer from progressive disability due to immobilization and cosmetic disfigurement. Treatment of scleromyxoedema is a therapeutic challenge. The antimalarial hydroxychloroquine has a rapid and reliable effect in reticular erythematous mucinosis. Patients and methods: Four consecutive patients (two women, two men; median age: 50 years) with scleromyxoedema, three of them with IgG λ paraprotein, were treated with hydroxychloroquine. Treatment was initiated with 600 mg p. o. for 10 days, followed by 400 mg for at least 4 weeks, and 200 mg thereafter. Results: Complete remission of skin manifestations was achieved in one patient, whereas three patients achieved a partial remission of 61+, 5 and 25 months' duration. Notably, three patients felt increased mobility and reduced firmness of skin during the first week of treatment, which was reflected in a rapid reduction in dermal thickness. In one patient, dysphagia was reverted as evidenced by normalization of oesophageal clearance. Paraproteinaemia was not influenced at all. Side effects included one case of electroretinogram abnormalities after 19 months of therapy and one case of leucopenia after 3 months. Conclusion: Hydroxychloroquine is an effective form of therapy for scleromyxoedema, leading to rapid and prolonged alleviation of symptoms. 相似文献
150.
Patrick Callaghan RN BSc MSc Cheung Siu Shan RN BN Lau Suk Yu RN BN Lo Wai Ching RN BN Tsui Lai Kwan RN BN 《Journal of advanced nursing》1997,26(1):33-40
This study investigated whether previous contact with mental illness affected the attitudes to mental illness (AMI) of general student nurses in Hong Kong — the contact hypothesis. We employed a quasi-experimental design. We compared the attitudes to mental illness of students who had previous contact with mental illness through having taken a psychiatric secondment with those who had not taken a psychiatric secondment. Also, we compared the AMI of: students who had taken other courses related to mental illness with those who had not; those who had a family history of mental illness with those who had not; and those who lived with a mentally ill relative with those who did not. We found that previous contact with mental illness had no significant effect on the attitudes to mental illness of the students. In other words our findings do not support the contact hypothesis. Our sample expressed positive general attitudes to mental illness when presented with general issues about mental illness. However, their attitudes were less positive when presented with specific issues about mental illness that might impinge upon their daily lives. We discuss the implications of these findings for mental health nursing practice, education and research. 相似文献