全文获取类型
收费全文 | 8601篇 |
免费 | 809篇 |
国内免费 | 9篇 |
专业分类
耳鼻咽喉 | 64篇 |
儿科学 | 271篇 |
妇产科学 | 212篇 |
基础医学 | 1160篇 |
口腔科学 | 111篇 |
临床医学 | 1093篇 |
内科学 | 1657篇 |
皮肤病学 | 88篇 |
神经病学 | 812篇 |
特种医学 | 231篇 |
外科学 | 865篇 |
综合类 | 174篇 |
一般理论 | 14篇 |
预防医学 | 1265篇 |
眼科学 | 237篇 |
药学 | 583篇 |
中国医学 | 17篇 |
肿瘤学 | 565篇 |
出版年
2023年 | 50篇 |
2022年 | 76篇 |
2021年 | 178篇 |
2020年 | 137篇 |
2019年 | 178篇 |
2018年 | 199篇 |
2017年 | 167篇 |
2016年 | 191篇 |
2015年 | 161篇 |
2014年 | 238篇 |
2013年 | 372篇 |
2012年 | 508篇 |
2011年 | 508篇 |
2010年 | 256篇 |
2009年 | 249篇 |
2008年 | 497篇 |
2007年 | 487篇 |
2006年 | 427篇 |
2005年 | 438篇 |
2004年 | 428篇 |
2003年 | 405篇 |
2002年 | 346篇 |
2001年 | 184篇 |
2000年 | 165篇 |
1999年 | 139篇 |
1998年 | 93篇 |
1997年 | 80篇 |
1996年 | 81篇 |
1995年 | 69篇 |
1994年 | 70篇 |
1993年 | 75篇 |
1992年 | 149篇 |
1991年 | 143篇 |
1990年 | 149篇 |
1989年 | 93篇 |
1988年 | 113篇 |
1987年 | 120篇 |
1986年 | 89篇 |
1985年 | 119篇 |
1984年 | 83篇 |
1983年 | 69篇 |
1982年 | 42篇 |
1980年 | 39篇 |
1979年 | 58篇 |
1978年 | 44篇 |
1975年 | 59篇 |
1974年 | 64篇 |
1973年 | 51篇 |
1971年 | 42篇 |
1970年 | 41篇 |
排序方式: 共有9419条查询结果,搜索用时 0 毫秒
111.
Raye Hudson Rosen Lois J. Martindale 《Social psychiatry and psychiatric epidemiology》1980,15(2):103-108
Summary The paper focuses on the relationship between changing societal norms toward women's roles and actual, emotional acceptance of them for oneself, specifically as the norms relate to abortion and sexual behavior. Elective abortion still is regarded by many as a deviant activity. Such a view has sprung from an uncritical acceptance of the traditional role of women. The implications are that women who have abortions accept traditional norms for sexual behavior, in spite of their own sexual activity, and have a generally traditional view of women's roles. They are considered to behave stereotypically and to have failed. Traditional norms for women's roles have been challenged in recent years, however, especially by the feminist movement. The authors hypothesized that women who sought early abortions would tend to have feminist orientations. The paper is based on a study of 1598 women with problem pregnancies, part of a larger study conducted throughout Michigan during 1974–75. The women studied showed little lag in emotional acceptance of changing norms about women's roles. They indicated a non-traditional female role orientation, and seemed to see themselves as competent, selfdirected, and legitimately sexual persons. Most did not have any great conflict over the decision to have an abortion. The findings by and large substantiated the authors' hypotheses.This research is supported by Grant Number 1 RO 1 HD0773901, National Institute of Child Health and Human Development, Washington, D. C. 相似文献
112.
Hudson B 《Health and social service journal》1983,93(4877):1504-1505
113.
In two surveys of three commercial abattoirs a minimal apparatus method for making bacterial counts, the "loop-tile' method, detected the same trends in bacterial numbers on beef carcasses as the ISO reference method applied to the same samples. Both methods showed the carcasses from one abattoir, that with an export license, to carry consistently higher numbers of bacteria, and one of the four sites sampled on each carcass to be consistently dirtier than the other three. 相似文献
114.
115.
116.
117.
118.
119.
120.
OBJECTIVE: Muscle dysmorphia is a form of body dysmorphic disorder in which individuals develop a pathological preoccupation with their muscularity. METHOD: The authors interviewed 24 men with muscle dysmorphia and 30 normal comparison weightlifters, recruited from gymnasiums in the Boston area, using a battery of demographic, psychiatric, and physical measures. RESULTS: The men with muscle dysmorphia differed significantly from the normal comparison weightlifters on numerous measures, including body dissatisfaction, eating attitudes, prevalence of anabolic steroid use, and lifetime prevalence of DSM-IV mood, anxiety, and eating disorders. The men with muscle dysmorphia frequently described shame, embarrassment, and impairment of social and occupational functioning in association with their condition. By contrast, normal weightlifters displayed little pathology. Indeed, in an a posteriori analysis, the normal weightlifters proved closely comparable to a group of male college students recruited as a normal comparison group in an earlier study. CONCLUSIONS: Muscle dysmorphia appears to be a valid diagnostic entity, possibly related to a larger group of disorders, and is associated with striking and stereotypical features. Men with muscle dysmorphia differ sharply from normal weightlifters, most of whom display little psychopathology. Further research is necessary to characterize the nosology and potential treatment of this syndrome. 相似文献