全文获取类型
收费全文 | 3124932篇 |
免费 | 220605篇 |
国内免费 | 8690篇 |
专业分类
耳鼻咽喉 | 42701篇 |
儿科学 | 102572篇 |
妇产科学 | 87326篇 |
基础医学 | 438835篇 |
口腔科学 | 85998篇 |
临床医学 | 281172篇 |
内科学 | 615815篇 |
皮肤病学 | 73264篇 |
神经病学 | 255470篇 |
特种医学 | 121262篇 |
外国民族医学 | 1020篇 |
外科学 | 470755篇 |
综合类 | 63857篇 |
现状与发展 | 5篇 |
一般理论 | 1167篇 |
预防医学 | 238443篇 |
眼科学 | 70502篇 |
药学 | 227415篇 |
8篇 | |
中国医学 | 6403篇 |
肿瘤学 | 170237篇 |
出版年
2019年 | 24297篇 |
2018年 | 34179篇 |
2017年 | 26443篇 |
2016年 | 30334篇 |
2015年 | 34142篇 |
2014年 | 47371篇 |
2013年 | 71338篇 |
2012年 | 94852篇 |
2011年 | 100340篇 |
2010年 | 60738篇 |
2009年 | 58127篇 |
2008年 | 94156篇 |
2007年 | 99765篇 |
2006年 | 101645篇 |
2005年 | 97779篇 |
2004年 | 93944篇 |
2003年 | 90869篇 |
2002年 | 87904篇 |
2001年 | 148421篇 |
2000年 | 151892篇 |
1999年 | 128582篇 |
1998年 | 36878篇 |
1997年 | 32912篇 |
1996年 | 33054篇 |
1995年 | 31728篇 |
1994年 | 29268篇 |
1993年 | 27555篇 |
1992年 | 100123篇 |
1991年 | 96214篇 |
1990年 | 93359篇 |
1989年 | 90339篇 |
1988年 | 82843篇 |
1987年 | 81234篇 |
1986年 | 76547篇 |
1985年 | 72911篇 |
1984年 | 54509篇 |
1983年 | 46315篇 |
1982年 | 27610篇 |
1981年 | 24518篇 |
1979年 | 48558篇 |
1978年 | 34320篇 |
1977年 | 29050篇 |
1976年 | 27133篇 |
1975年 | 29010篇 |
1974年 | 34388篇 |
1973年 | 32871篇 |
1972年 | 30843篇 |
1971年 | 28492篇 |
1970年 | 26607篇 |
1969年 | 25486篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
993.
994.
995.
Maternal mortality in rural Bangladesh: the Tangail District 总被引:1,自引:0,他引:1
M Alauddin 《Studies in family planning》1986,17(1):13-21
A study was conducted from September 1982 to August 1983 in the Tangail district of Bangladesh to estimate the maternal mortality level there and identify its causes and correlates. A rate of 56.6 per 10,000 live births was found, with abortion-related deaths contributing nearly 10 deaths per 10,000 live births. The major causes of maternal mortality were found to be obstructed labor and sepsis caused by improperly performed abortion. Those at high risk were mothers below age 20 and above age 30 and those above parity four. No inverse relationship was found between maternal mortality and socioeconomic status, as might be expected. Community-level pregnancy monitoring programs, increased attention on the part of family planning workers toward teenaged, older, and high parity mothers, and nutrition supplement programs for anemic mothers are recommended. 相似文献
996.
997.
998.
Socio-medical indicators of health in South Africa 总被引:3,自引:0,他引:3
Socio-medical indicators developed by WHO for monitoring progress towards Health-for-All have been adapted to reveal, clearly and objectively, the devastating impact of state planning based on an outmoded immoral and unscientific philosophy of race superiority in South Africa on the health of the disenfranchised majority within the context of social and economic discrimination; Health policy indicators confirm that the government is committed to three options (Bantustans, A New Constitution, and A Health Services Facilities Plan) all of which are inconsistent with the attainment of Health-for-All; Social and economic indicators reveal gross disparities between African, Coloured, Indian, and White living and working conditions; Provision of health care indicators show the overwhelming dominance of high technology curative medical care consuming about 97 percent of the health budget with only minor shifts towards community-based comprehensive care; and Health status indicators illustrate the close nexus between privilege, dispossession and disease with Whites falling prey to health problems related to affluence and lifestyle, while Africans, Coloureds, and Indians suffer from disease due to poverty. All four categories of the indicator system reveal discrepancies which exist between Black and White, rich and poor, urban and rural. To achieve the social goal of Health-for-All requires a greater measure of political commitment from the state. We conclude that it is debatable whether a system which maintains race discrimination and exploitation can in fact be adapted to provide Health-for-All. 相似文献
999.
1000.