全文获取类型
收费全文 | 7717篇 |
免费 | 483篇 |
国内免费 | 42篇 |
专业分类
耳鼻咽喉 | 73篇 |
儿科学 | 413篇 |
妇产科学 | 188篇 |
基础医学 | 1097篇 |
口腔科学 | 365篇 |
临床医学 | 711篇 |
内科学 | 1730篇 |
皮肤病学 | 198篇 |
神经病学 | 741篇 |
特种医学 | 195篇 |
外科学 | 1027篇 |
综合类 | 45篇 |
一般理论 | 4篇 |
预防医学 | 449篇 |
眼科学 | 148篇 |
药学 | 456篇 |
中国医学 | 24篇 |
肿瘤学 | 378篇 |
出版年
2023年 | 52篇 |
2022年 | 123篇 |
2021年 | 237篇 |
2020年 | 120篇 |
2019年 | 188篇 |
2018年 | 226篇 |
2017年 | 161篇 |
2016年 | 229篇 |
2015年 | 244篇 |
2014年 | 250篇 |
2013年 | 373篇 |
2012年 | 564篇 |
2011年 | 558篇 |
2010年 | 325篇 |
2009年 | 308篇 |
2008年 | 478篇 |
2007年 | 509篇 |
2006年 | 419篇 |
2005年 | 410篇 |
2004年 | 404篇 |
2003年 | 312篇 |
2002年 | 323篇 |
2001年 | 69篇 |
2000年 | 39篇 |
1999年 | 55篇 |
1998年 | 53篇 |
1997年 | 56篇 |
1996年 | 47篇 |
1995年 | 34篇 |
1994年 | 26篇 |
1993年 | 47篇 |
1992年 | 29篇 |
1991年 | 30篇 |
1990年 | 28篇 |
1989年 | 29篇 |
1988年 | 17篇 |
1987年 | 27篇 |
1985年 | 23篇 |
1984年 | 23篇 |
1983年 | 21篇 |
1982年 | 22篇 |
1981年 | 18篇 |
1980年 | 25篇 |
1978年 | 16篇 |
1977年 | 18篇 |
1976年 | 20篇 |
1975年 | 21篇 |
1931年 | 23篇 |
1923年 | 19篇 |
1916年 | 18篇 |
排序方式: 共有8242条查询结果,搜索用时 15 毫秒
81.
82.
Early introduction of allergenic foods for the prevention of food allergy from an Asian perspective—An Asia Pacific Association of Pediatric Allergy,Respirology & Immunology (APAPARI) consensus statement 下载免费PDF全文
Elizabeth Huiwen Tham Lynette Pei‐Chi Shek Hugo PS Van Bever Pakit Vichyanond Motohiro Ebisawa Gary WK Wong Bee Wah Lee the Asia Pacific Association of Pediatric Allergy Respirology & Immunology 《Pediatric allergy and immunology》2018,29(1):18-27
Emerging evidence for the early introduction of allergenic foods for the prevention of food allergies, such as peanut allergy in Western populations, has led to the recent publication of guidelines in the USA and Europe recommending early peanut introduction for high‐risk infants with severe eczema or egg allergy. Peanut allergy is, however, much less prevalent in Asia compared to the West. Varying patterns of food allergy are seen even within Asian countries—such as a predominance of wheat allergy in Japan and Thailand and shellfish allergy in Singapore and the Philippines. Customs and traditions, such as diet and infant feeding practices, also differ between Asian populations. Hence, there are unique challenges in adapting guidelines on early allergenic food introduction to the Asian setting. In this paper, we review the evidence and discuss the possible approaches to guide the timely introduction of allergenic food in high‐risk infants in Asia. 相似文献
83.
84.
85.
Hugo W. Huisman Aletta E. Schutte Johannes M. van Rooyen Rudolph Schutte Leoné Malan Catatharina M.T. Fourie 《Clinical and experimental hypertension (New York, N.Y. : 1993)》2013,35(1):1-15
Epidemiologic Survillance of Cardiovascular Disease Mollar G, Cavalieri L, Galarza C, Waisman G, Beratarrechea A, Petrlik E, Langlois E, Soriano F, Marchetti M, and Gonzalez B de Quirós F Programas Médicos de Plan de Salud del Hospital Italiano de Buenos AiresTo enhance efficacy of health care, surveillance activities are required, especially with chronic prevalent diseases. Epidemiologic surveillance allows US to quantify and qualify health problems, settle priorities, identify high risk groups, manage and monitor health care systems, detect frequency changes in events, and assess performance of prevention and disease management programs. We have developed a surveillance system that identifies and reports daily on patients having cardiovascular disease (CVD) who are uncontrolled.Objective: To evaluate the accomplishment of blood pressure (BP) measurement in people with CVD belonging to a health care system included in an epidemiological surveillance list.Design: Cohort study between 1/1/2004 and 9/1/2004.Methods: Patients 60 years old or older identified by surveillance system during the first term of 2004, were followed up. Patients were identified as having CVD through electronic medical record using international classification for primary attention (ICPA).Patients are reported by the software system when presenting any of the following criteria: no blood pressure record during the past 6 months, blood pressure above 140/90 in the last record, and if diabetic A1C above 7.5%.The connection with the appointment system allowed us to detect previously the patient’s attendance and, 15 min before his or her medical appointment, send the patient to be examined by the executors of a chronic disease program, according to the JNC VII guidelines.The BP measurement is a common intervention to most chronic diseases because it increases cardiovascular risk, hence it is considered a process indicator of the surveillance system.Results: Of the 24,411 patients having CVD, 5506 (26%) were listed during the first term, mean age was 74 years and 65% were female. By the end of 2004, 4660 (85%) patients had blood pressure recorded with an average values of 136.76 mmHg for systolic and 77.51 for diastolic blood pressure. Blood pressure was assessed three times in average.Conclusion: Surveillance system allowed identifying of and intervening in a high proportion of patients. 相似文献
86.
87.
88.
89.
90.
[This corrects the article on p. 115 in vol. 1, PMID: 22053307.]. 相似文献