全文获取类型
收费全文 | 22711篇 |
免费 | 1313篇 |
国内免费 | 242篇 |
专业分类
耳鼻咽喉 | 461篇 |
儿科学 | 308篇 |
妇产科学 | 267篇 |
基础医学 | 4118篇 |
口腔科学 | 543篇 |
临床医学 | 1742篇 |
内科学 | 4183篇 |
皮肤病学 | 879篇 |
神经病学 | 1742篇 |
特种医学 | 1308篇 |
外科学 | 2899篇 |
综合类 | 127篇 |
一般理论 | 5篇 |
预防医学 | 1005篇 |
眼科学 | 441篇 |
药学 | 2048篇 |
中国医学 | 282篇 |
肿瘤学 | 1908篇 |
出版年
2023年 | 119篇 |
2022年 | 99篇 |
2021年 | 505篇 |
2020年 | 388篇 |
2019年 | 533篇 |
2018年 | 615篇 |
2017年 | 524篇 |
2016年 | 719篇 |
2015年 | 1079篇 |
2014年 | 1277篇 |
2013年 | 1422篇 |
2012年 | 2150篇 |
2011年 | 2038篇 |
2010年 | 1150篇 |
2009年 | 1033篇 |
2008年 | 1444篇 |
2007年 | 1321篇 |
2006年 | 1136篇 |
2005年 | 1004篇 |
2004年 | 859篇 |
2003年 | 748篇 |
2002年 | 639篇 |
2001年 | 562篇 |
2000年 | 468篇 |
1999年 | 388篇 |
1998年 | 153篇 |
1997年 | 114篇 |
1996年 | 79篇 |
1995年 | 94篇 |
1994年 | 61篇 |
1993年 | 46篇 |
1992年 | 143篇 |
1991年 | 149篇 |
1990年 | 108篇 |
1989年 | 121篇 |
1988年 | 101篇 |
1987年 | 108篇 |
1986年 | 95篇 |
1985年 | 87篇 |
1984年 | 63篇 |
1983年 | 57篇 |
1982年 | 38篇 |
1981年 | 38篇 |
1980年 | 30篇 |
1979年 | 48篇 |
1978年 | 49篇 |
1977年 | 42篇 |
1976年 | 34篇 |
1974年 | 30篇 |
1973年 | 34篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Young-Chan Kim Sungmi Choi Kyoung-Hee Sohn Ji-Young Bang Yuldam Kim Jae-Woo Jung Hye-Young Kim Jaehyun Park Kangjin Kim Min-Gyu Kang Min-Suk Yang Sujeong Kim Sae-Hoon Kim Jeong-Hee Choi Hye Jung Park Sang Min Lee Sang Heon Kim Jung-Won Park Jong Myung Lee Sang-Heon Cho Sungho Won Hana Yi Hye-Ryun Kang 《Allergy》2022,77(1):317-320
3.
Jacklyn Cho BS Brittany Toffey MD Ariel F. Silva NP Ariel Shalev MD Monika M. Safford MD Erica Phillips MD MS Ann Lee BS Faith Wiggins BS MS Elissa Kozlov PhD Emma K. Tsui PhD MPH Nicola Dell PhD Ariel C. Avgar PhD Susan J. Andreae PhD MPH Madeline R. Sterling MD MPH MS 《Health services research》2023,58(3):697-704
4.
Rhee Tae-Min Kim Hyung-Kwan Choi You-Jung Lee Hyun-Jung Hwang In-Chang Yoon Yeonyee E. Kim Hack-Lyoung Park Jun-Bean Lee Seung-Pyo Kim Yong-Jin Cho Goo-Yeong 《The international journal of cardiovascular imaging》2022,38(9):1939-1950
The International Journal of Cardiovascular Imaging - The new version of EchoPAC platform was recently developed by General Electronics (GE) to provide ‘vendor-independent’... 相似文献
5.
6.
7.
Seong Hee Kang Yuri Cho Soung Won Jeong Seung Up Kim Jin-Woo Lee On behalf of Korean NAFLD Study Group 《Clinical and molecular hepatology》2021,27(2):257
There is some dissatisfaction with the term “nonalcoholic fatty liver disease (NAFLD),” which overemphasizes alcohol and underemphasizes the importance of metabolic risk factors in this disease. Recently, a consensus recommended “metabolic (dysfunction)-associated fatty liver disease (MAFLD)” as a more appropriate term to describe fatty liver diseases (FLD) associated with metabolic dysfunction. During the definition change from NAFLD to MAFLD, subjects with FLD and metabolic abnormalities, together with other etiologies of liver diseases such as alcohol, virus, or medication who have been excluded from the NAFLD criteria, were added to the MAFLD criteria, while subjects with FLD but without metabolic abnormality, who have been included in the NAFLD criteria, were excluded from the MAFLD criteria. This means that there is an emphasis on the metabolic dysfunction in MAFLD which may underestimate the prognostic value of hepatic steatosis itself, whereas the MAFLD criteria might better identify subjects who are at a higher risk of hepatic or cardiovascular outcomes. However, non-metabolic risk NAFLD subjects who are excluded from the MAFLD criteria are missed from the diagnosis, and their potential risk can be the cause of future diseases. Although huge controversies remain, this review focused on summarizing recent studies that compared the clinical and prognostic characteristics between subjects with NAFLD and MAFLD. 相似文献
8.
Sooyoung Kim Tae H. Park Woo I. Kim Suyeon Park Jae H. Kim Moon K. Cho 《Phytotherapy research : PTR》2021,35(1):374-383
Green tea extract (GTE) has been studied for the treatment of acne based on its anti‐inflammatory/antioxidant properties. This systematic review and meta‐analysis aimed to examine the effects of GTE on acne. Electronic databases, including PubMed, Embase, and the Cochrane Library were systematically searched up to August 2019. The effect size of acne lesion counts is presented as mean differences and 95% confidence intervals (CIs). Five randomized‐controlled studies were included in the meta‐analysis (N; experimental = 125, control = 122). GTE significantly reduced the number of inflammatory lesions (?9.38; 95% CI: ?14.13 to ?4.63). In subgroup analysis, topical GTE application significantly reduced the inflammatory lesion counts (?11.39; 95% CI: ?15.91 to ?6.86) whereas oral GTE intake showed minimal effect (?1.40; 95% CI: ?2.50 to ?0.30). Although GTE did not significantly reduce the number of non‐inflammatory lesions (?21.65; 95% CI: ?47.52 to 4.22), when stratified by the route of admission, non‐inflammatory acne lesions were significantly reduced by topical GTE application (?32.44; 95% CI: ?39.27 to ?25.62) but not with oral GTE administration (0.20; 95% CI: 0.00 to 0.40). This systematic review and meta‐analysis suggest that topical GTE application is beneficial for the treatment of acne without causing significant adverse events while oral GTE intake has limited effects. Further high‐quality clinical trials are warranted. 相似文献
9.
Rationale:The prone position is commonly used in spinal surgery. There have been many studies on hemodynamic changes in the prone position during general anesthesia. We report a rare case of transient left bundle branch block (LBBB) in a prone position.Patient concern:Electrocardiogram (ECG) of a 64-year-old man scheduled for spinal surgery showed normal sinus rhythm change to LBBB after posture change to the prone position.Diagnosis:Twelve lead ECG revealed LBBB. His coronary angio-computed tomography results showed right coronary artery with 30% to 40% stenosis and left circumflex artery with 40% to 50% stenosis. The patient was diagnosed with stable angina and second-degree atrioventricular block of Mobitz type II.Intervention:Nitroglycerin was administered intravenously during surgery. Adequate oxygen was supplied to the patient. After surgery, the patient was prescribed clopidogrel, statins, angiotensin II receptor blocker, and a permanent pacemaker was inserted.Outcome:Surgery was completed without complications. After surgery, the transient LBBB changed to a normal sinus rhythm. The patient did not complain of chest pain or dyspnea.Lesson:The prone position causes significant hemodynamic changes. A high risk of cardiovascular disease may cause ischemic heart disease and ECG changes. Therefore, careful management is necessary. 相似文献
10.