全文获取类型
收费全文 | 2814篇 |
免费 | 182篇 |
国内免费 | 30篇 |
专业分类
耳鼻咽喉 | 13篇 |
儿科学 | 217篇 |
妇产科学 | 39篇 |
基础医学 | 308篇 |
口腔科学 | 188篇 |
临床医学 | 221篇 |
内科学 | 636篇 |
皮肤病学 | 55篇 |
神经病学 | 95篇 |
特种医学 | 351篇 |
外科学 | 233篇 |
综合类 | 98篇 |
预防医学 | 131篇 |
眼科学 | 132篇 |
药学 | 141篇 |
1篇 | |
中国医学 | 6篇 |
肿瘤学 | 161篇 |
出版年
2022年 | 32篇 |
2021年 | 71篇 |
2020年 | 43篇 |
2019年 | 45篇 |
2018年 | 63篇 |
2017年 | 37篇 |
2016年 | 59篇 |
2015年 | 80篇 |
2014年 | 77篇 |
2013年 | 117篇 |
2012年 | 137篇 |
2011年 | 95篇 |
2010年 | 119篇 |
2009年 | 106篇 |
2008年 | 102篇 |
2007年 | 114篇 |
2006年 | 74篇 |
2005年 | 78篇 |
2004年 | 74篇 |
2003年 | 77篇 |
2002年 | 66篇 |
2001年 | 65篇 |
2000年 | 40篇 |
1999年 | 61篇 |
1998年 | 97篇 |
1997年 | 82篇 |
1996年 | 61篇 |
1995年 | 59篇 |
1994年 | 43篇 |
1993年 | 49篇 |
1992年 | 25篇 |
1991年 | 43篇 |
1990年 | 35篇 |
1989年 | 71篇 |
1988年 | 75篇 |
1987年 | 62篇 |
1986年 | 53篇 |
1985年 | 59篇 |
1984年 | 31篇 |
1983年 | 26篇 |
1982年 | 21篇 |
1980年 | 23篇 |
1979年 | 26篇 |
1978年 | 24篇 |
1977年 | 22篇 |
1976年 | 25篇 |
1975年 | 20篇 |
1974年 | 21篇 |
1971年 | 19篇 |
1970年 | 21篇 |
排序方式: 共有3026条查询结果,搜索用时 15 毫秒
1.
Indian Journal of Pediatrics - 相似文献
2.
Ashish Chawla 《Singapore medical journal》2015,56(11):604-611
Cardiovascular and noncardiovascular conditions are commonly encountered in the emergency department. While the majority of patients have underlying cardiovascular aetiologies, such as acute myocardial infarction, congestive heart failure, aortic dissection and pulmonary embolism, a small subset of patients have underlying noncardiovascular conditions, although they present with similar symptoms of chest pain, dyspnoea, cough, haemoptysis and haematemesis. This article aims to describe the imaging findings in common noncardiovascular conditions of the chest that are frequently encountered in the emergency department, with a review of the existing literature. 相似文献
3.
Sandeep Gohar Devendra Desai Anand Joshi Anita Bhaduri Ramesh Deshpande C Balkrishna Mukesh Chawla Camila Rodrigues V R Joshi 《Indian journal of gastroenterology》2003,22(4):140-142
INTRODUCTION: Autoimmune hepatitis (AIH) is a well-defined entity in the West but there are sparse Indian data on this disease. AIM: To study the clinical profile and response to treatment of Indian patients with AIH. METHODS: This is a part retrospective and part prospective study of 50 patients (median age 48 years, range 11-82; 43 women) seen between 1995 to 2001, diagnosed to have AIH as per the revised scoring system. Clinical and laboratory profile, response to treatment, and complications of treatment were analyzed. RESULTS: AIH accounted for 6% of all patients with liver disease seen during the period. The presenting symptoms were gastrointestinal in 43 and non-gastrointestinal in 7, with median symptom duration of 6 months (range 2 weeks to 40 years). Forty patients (80%) had chronic liver disease. Associated illnesses were present in 28 patients. Twenty-six patients were classified as definite and the rest as probable AIH. Forty-nine patients had Type 1 AIH. Five patients had overlap syndrome. Forty-five patients (90%) received immunosuppressive therapy. Twelve of 18 patients receiving only prednisolone and 21 of 27 patients receiving prednisolone and azathioprine combination responded. Thirteen (26%) patients had therapy-related complications (infectious 5, non infectious 8) with two treatment-related deaths. CONCLUSION: Type 1 AIH was the predominant type of AIH. The majority of patients with AIH presented with chronic liver disease. There was good response to immunosuppressive therapy. Therapy-related complications occurred in one-fourth of patients. 相似文献
4.
5.
6.
Pyomyositis: characteristics at CT and MR imaging 总被引:9,自引:0,他引:9
7.
AJ Larner MRCP 《International journal of clinical practice》1994,48(5):272-274
SUMMARY A case is reported of pseudohyperphosphataemia in association with a monoclonal gammopathy of undetermined significance. 相似文献
8.
9.
D De AJ Kanwar S Handa 《Journal of the European Academy of Dermatology and Venereology》2006,20(7):853-859
BACKGROUND: Diagnosis of atopic dermatitis (AD) depends on clinical features because no definitive diagnostic test exists. Criteria proposed by Hanifin and Rajka (Acta Derm Venereol (Stockh) 1980; Suppl 92: 44-47) were acceptable for hospital-based studies but were found not to be suitable for field studies. A UK working party formulated clinical diagnostic criteria that could be used in both hospital and epidemiological settings. Validation studies of the criteria showed widely variable results, probably due to different clinical settings and ethnicity. AIM AND OBJECTIVE: This study was undertaken to validate Hanifin and Rajka's criteria and to assess the comparative efficacy of their criteria and the UK working party's diagnostic criteria in the diagnosis of AD in a hospital setting in North India. SUBJECTS AND METHODS: This study serially included 101 patients with AD and 48 controls of paediatric age group. The study period was from July 2003 to December 2004. RESULTS: Hanifin and Rajka's criteria (sensitivity 96%, specificity 93.75%, positive predictive value 97% (PPV) and negative predictive value (NPV) 91.84%) had a statistical advantage over the UK working party's diagnostic criteria (sensitivity 86%, specificity 95.83%, PPV 97.75% and NPV 76.67%), with a P-value < 0.005. 相似文献
10.
SUMMARY Impotence is a common symptom which can cause considerable distress to both the sufferer and his partner. The use of pharmacotherapy to improve erectile function will continue to increase as safe and effective drugs are developed. However, restoring erectile function should not be the only treatment objective. It is also essential to address personal and emotional factors in the sufferer, conflicts in his relationship with his partner, and sexual problems in his partner, all of which may be instrumental in causing or maintaining the presenting impotence. We advocate a combined approach with appropriate medical treatment and sex and couple therapy 相似文献