全文获取类型
收费全文 | 4303篇 |
免费 | 223篇 |
国内免费 | 13篇 |
专业分类
耳鼻咽喉 | 84篇 |
儿科学 | 257篇 |
妇产科学 | 104篇 |
基础医学 | 388篇 |
口腔科学 | 75篇 |
临床医学 | 272篇 |
内科学 | 887篇 |
皮肤病学 | 77篇 |
神经病学 | 255篇 |
特种医学 | 142篇 |
外科学 | 741篇 |
综合类 | 121篇 |
一般理论 | 1篇 |
预防医学 | 197篇 |
眼科学 | 286篇 |
药学 | 248篇 |
中国医学 | 9篇 |
肿瘤学 | 395篇 |
出版年
2023年 | 28篇 |
2022年 | 64篇 |
2021年 | 156篇 |
2020年 | 73篇 |
2019年 | 113篇 |
2018年 | 145篇 |
2017年 | 106篇 |
2016年 | 128篇 |
2015年 | 120篇 |
2014年 | 206篇 |
2013年 | 195篇 |
2012年 | 337篇 |
2011年 | 335篇 |
2010年 | 201篇 |
2009年 | 164篇 |
2008年 | 259篇 |
2007年 | 243篇 |
2006年 | 221篇 |
2005年 | 180篇 |
2004年 | 141篇 |
2003年 | 149篇 |
2002年 | 168篇 |
2001年 | 73篇 |
2000年 | 82篇 |
1999年 | 92篇 |
1998年 | 24篇 |
1997年 | 19篇 |
1996年 | 23篇 |
1995年 | 22篇 |
1994年 | 11篇 |
1992年 | 38篇 |
1991年 | 47篇 |
1990年 | 38篇 |
1989年 | 32篇 |
1988年 | 21篇 |
1987年 | 23篇 |
1985年 | 20篇 |
1984年 | 12篇 |
1983年 | 16篇 |
1979年 | 13篇 |
1977年 | 14篇 |
1976年 | 16篇 |
1975年 | 12篇 |
1973年 | 13篇 |
1972年 | 16篇 |
1971年 | 12篇 |
1970年 | 11篇 |
1969年 | 11篇 |
1968年 | 15篇 |
1967年 | 12篇 |
排序方式: 共有4539条查询结果,搜索用时 62 毫秒
1.
Apoorva Challa Neeraj Mahajan Seema Sood Arti Kapil Bimal Kumar Das Vishnubhatla Sreenivas Somesh Gupta 《Indian journal of medical microbiology》2022,40(3):433-435
Treatment guidelines for management of uncomplicated gonorrhoeae have been recently modified owing to alarming upsurge in azithromycin resistance. This study investigated the prevalence and genetic determinants of gonococcal azithromycin resistance in India. Four (5.7%) of 70 gonococcal isolates were resistant to azithromycin. Of 16 isolates investigated for molecular mechanisms of resistance, 13 (81.3%) and 6 (37.5%) isolates exhibited mutations in coding and promoter regions of mtrR gene, respectively. However, ermA, ermB and ermC genes or mutations in rrl gene were absent in all isolates. Azithromycin resistance is low in India posing no immediate threat to use of dual-therapy for syndromic management. 相似文献
2.
3.
4.
5.
6.
7.
Catherine M. Cahill Melissa J. Green Rajeev Jairam Gin S. Malhi 《Early intervention in psychiatry》2007,1(2):138-149
Aim: This article reviews research centred around juvenile bipolar disorder with particular reference to diagnostic difficulties. Putative deficits are scrutinized with respect to trait likelihood and the roles of neuropsychology and neuroimaging in enhancing our understanding of juvenile bipolar disorder are discussed. Methods: Search terms including childhood, adolescent, youth and juvenile combined with the terms ‘bipolar disorder’, mania, depression and hypomania were used to identify relevant studies in MEDLINE and PsychLit. Results: Over recent years research into this relatively new disorder has increased phenomenally. Key issues within the field include diagnostic specificity, the heritability of the disorder, the impact of comorbidity and the implications of neuropsychological and neuroimaging findings. Conclusion: Despite concerning controversies in literature the diagnosis of bipolar disorder in children and adolescents as compared with adults, promising future research directions include better neurological characterization of the disorder through the application of findings from clinical populations, neuropsychological and neuroimaging research. 相似文献
8.
Ajit Sood Vandana Midha Neena Sood Manu Bansal 《Indian journal of gastroenterology》2006,25(6):283-285
BACKGROUND: The treatment of hepatitis C virus (HCV)-related cirrhosis is difficult due to high frequency of adverse effects. We retrospectively reviewed the case records of patients with HCV cirrhosis to evaluate the efficacy and tolerability of pegylated (peg) interferon and ribavirin treatment in these patients. METHODS: Medical records of 28 patients with HCV-related compensated cirrhosis were reviewed. The treatment protocol was a combination therapy of peg interferon alfa-2b (1 microg/Kg/week) plus oral ribavirin (10-12 mg/Kg/day). Primary endpoint was sustained virological response, with additional endpoints of drug tolerance, clinical or biochemical worsening and death. RESULTS: End-of-treatment virlogic response was seen in 24 of 28 patients (85%) and sustained virologic response in 15 of 28 (53%) patients. Biochemical end-of-treatment response and sustained response were seen in 20 and 16 patients (71% and 57%), respectively. Treatment had to be stopped in 3 patients due to decompensation of liver status in two and drug intolerance in one, while dose modification was required in two patients. CONCLUSIONS: Combination therapy with peg interferon plus ribavirin seems effective in patients with liver cirrhosis. High relapse rate, poor biochemical recovery and possibility of decompensation are issues that need to be kept in mind. 相似文献
9.
10.
J Rajeev Shoba Srinath Y C J Reddy M G Shashikiran Satish Chandra Girimaji Shekhar P Seshadri D K Subbakrishna 《Revue canadienne de psychiatrie》2003,48(1):52-55
OBJECTIVE: Recent studies of patients with juvenile bipolar disorder report low rates of recovery and high rates of chronicity. However, we lack data on the short-term outcome. This study examines the pattern of recovery from the index episode in an aggressively treated juvenile sample. METHOD: We assessed 25 subjects (< 16 years) with a diagnosis of mania, using the Diagnostic Interview for Children and Adolescents-Revised) (DICA-R), Young Mania Rating Scale (YMRS), and Children's Global Assessment Scale (CGAS) at intake and at 3 and 6 months. We studied the time taken to recover from the index episode, the level of functioning, and the factors predicting them. RESULTS: After 6 months, 24 (96%) subjects had recovered from the index manic episode. The median time to recovery was 27 days. Total episode length was significantly longer among those with previous affective episodes. CONCLUSIONS: The findings suggest that juvenile-onset mania has high rates of recovery and low rates of chronicity. These differences from the existing literature need further exploration. 相似文献