全文获取类型
收费全文 | 1023890篇 |
免费 | 77613篇 |
国内免费 | 2282篇 |
专业分类
耳鼻咽喉 | 15123篇 |
儿科学 | 29857篇 |
妇产科学 | 29425篇 |
基础医学 | 146297篇 |
口腔科学 | 29971篇 |
临床医学 | 86068篇 |
内科学 | 201442篇 |
皮肤病学 | 22309篇 |
神经病学 | 83197篇 |
特种医学 | 38912篇 |
外国民族医学 | 201篇 |
外科学 | 156927篇 |
综合类 | 25561篇 |
现状与发展 | 2篇 |
一般理论 | 299篇 |
预防医学 | 83606篇 |
眼科学 | 23797篇 |
药学 | 76154篇 |
中国医学 | 2108篇 |
肿瘤学 | 52529篇 |
出版年
2019年 | 8721篇 |
2018年 | 12079篇 |
2017年 | 8786篇 |
2016年 | 9558篇 |
2015年 | 11038篇 |
2014年 | 15487篇 |
2013年 | 23265篇 |
2012年 | 32425篇 |
2011年 | 33852篇 |
2010年 | 19425篇 |
2009年 | 17873篇 |
2008年 | 30813篇 |
2007年 | 33276篇 |
2006年 | 32956篇 |
2005年 | 32596篇 |
2004年 | 31579篇 |
2003年 | 30152篇 |
2002年 | 28961篇 |
2001年 | 40807篇 |
2000年 | 41660篇 |
1999年 | 35228篇 |
1998年 | 10429篇 |
1997年 | 9413篇 |
1996年 | 9290篇 |
1995年 | 8704篇 |
1992年 | 28824篇 |
1991年 | 28157篇 |
1990年 | 27518篇 |
1989年 | 26338篇 |
1988年 | 24767篇 |
1987年 | 24390篇 |
1986年 | 23140篇 |
1985年 | 22451篇 |
1984年 | 17376篇 |
1983年 | 14842篇 |
1982年 | 9356篇 |
1981年 | 8620篇 |
1979年 | 17672篇 |
1978年 | 12753篇 |
1977年 | 10696篇 |
1976年 | 9852篇 |
1975年 | 10784篇 |
1974年 | 13472篇 |
1973年 | 12949篇 |
1972年 | 12253篇 |
1971年 | 11361篇 |
1970年 | 10933篇 |
1969年 | 10577篇 |
1968年 | 9540篇 |
1967年 | 8801篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
83.
84.
L. Misery E. Weisshaar E. Brenaut A.W.M. Evers F. Huet S. Ständer A. Reich E. Berardesca E. Serra-Baldrich J. Wallengren D. Linder J.W. Fluhr J.C. Szepietowski H. Maibach for the Special Interest Group on sensitive skin of the International Forum for the Study of Itch 《Journal of the European Academy of Dermatology and Venereology》2020,34(2):222-229
The special interest group on sensitive skin of the International Forum for the Study of Itch previously defined sensitive skin as a syndrome defined by the occurrence of unpleasant sensations (stinging, burning, pain, pruritus and tingling sensations) in response to stimuli that normally should not provoke such sensations. This additional paper focuses on the pathophysiology and the management of sensitive skin. Sensitive skin is not an immunological disorder but is related to alterations of the skin nervous system. Skin barrier abnormalities are frequently associated, but there is no cause and direct relationship. Further studies are needed to better understand the pathophysiology of sensitive skin – as well as the inducing factors. Avoidance of possible triggering factors and the use of well-tolerated cosmetics, especially those containing inhibitors of unpleasant sensations, might be suggested for patients with sensitive skin. The role of psychosocial factors, such as stress or negative expectations, might be relevant for subgroups of patients. To date, there is no clinical trial supporting the use of topical or systemic drugs in sensitive skin. The published data are not sufficient to reach a consensus on sensitive skin management. In general, patients with sensitive skin require a personalized approach, taking into account various biomedical, neural and psychosocial factors affecting sensitive skin. 相似文献
85.
86.
87.
Astrid Ruiz-Marg in Berenice M Rom n-Calleja Paulina Moreno-Guill n Jos A Gonz lez-Regueiro Deyanira K sulas-Delint Alejandro Campos-Murgu a Nayelli C Flores-Garc a Ricardo Ulises Mac as-Rodr guez 《World journal of gastrointestinal oncology》2021,13(10):1440-1452
Hepatocellular carcinoma (HCC) is the most frequent primary liver cancer and presents together with cirrhosis in most cases. In addition to commonly recognized risk factors for HCC development, such as hepatitis B virus/hepatitis C virus infection, age and alcohol/tobacco consumption, there are nutritional risk factors also related to HCC development including high intake of saturated fats derived from red meat, type of cooking (generation of heterocyclic amines) and contamination of foods with aflatoxins. On the contrary, protective nutritional factors include diets rich in fiber, fruits and vegetables, n-3 polyunsaturated fatty acids and coffee. While the patient is being evaluated for staging and treatment of HCC, special attention should be paid to nutritional support, including proper nutritional assessment and therapy by a multidisciplinary team. It must be considered that these patients usually develop HCC on top of long-lasting cirrhosis, and therefore they could present with severe malnutrition. Cirrhosis-related complications should be properly addressed and considered for nutritional care. In addition to traditional methods, functional testing, phase angle and computed tomography scan derived skeletal muscle index-L3 are among the most useful tools for nutritional assessment. Nutritional therapy should be centered on providing enough energy and protein to manage the increased requirements of both cirrhosis and cancer. Supplementation with branched-chain amino acids is also recommended as it improves response to treatment, nutritional status and survival, and finally physical exercise must be encouraged and adapted to individual needs. 相似文献
88.
89.
90.