全文获取类型
收费全文 | 2076743篇 |
免费 | 143444篇 |
国内免费 | 4825篇 |
专业分类
耳鼻咽喉 | 30100篇 |
儿科学 | 64146篇 |
妇产科学 | 60457篇 |
基础医学 | 290924篇 |
口腔科学 | 61299篇 |
临床医学 | 174693篇 |
内科学 | 409945篇 |
皮肤病学 | 46046篇 |
神经病学 | 165503篇 |
特种医学 | 82846篇 |
外国民族医学 | 749篇 |
外科学 | 324155篇 |
综合类 | 46569篇 |
现状与发展 | 6篇 |
一般理论 | 664篇 |
预防医学 | 146998篇 |
眼科学 | 48599篇 |
药学 | 152975篇 |
4篇 | |
中国医学 | 4499篇 |
肿瘤学 | 113835篇 |
出版年
2018年 | 19443篇 |
2016年 | 16941篇 |
2015年 | 19211篇 |
2014年 | 27189篇 |
2013年 | 41626篇 |
2012年 | 55007篇 |
2011年 | 58261篇 |
2010年 | 35037篇 |
2009年 | 33717篇 |
2008年 | 55743篇 |
2007年 | 60244篇 |
2006年 | 60830篇 |
2005年 | 59326篇 |
2004年 | 57270篇 |
2003年 | 55575篇 |
2002年 | 54606篇 |
2001年 | 95581篇 |
2000年 | 98417篇 |
1999年 | 83546篇 |
1998年 | 22879篇 |
1997年 | 20808篇 |
1996年 | 20293篇 |
1995年 | 19028篇 |
1994年 | 18008篇 |
1993年 | 16779篇 |
1992年 | 65058篇 |
1991年 | 62820篇 |
1990年 | 61557篇 |
1989年 | 59895篇 |
1988年 | 55816篇 |
1987年 | 54772篇 |
1986年 | 52598篇 |
1985年 | 50034篇 |
1984年 | 37488篇 |
1983年 | 31916篇 |
1982年 | 19217篇 |
1981年 | 17289篇 |
1979年 | 35748篇 |
1978年 | 25307篇 |
1977年 | 21905篇 |
1976年 | 20056篇 |
1975年 | 22543篇 |
1974年 | 26812篇 |
1973年 | 25830篇 |
1972年 | 24757篇 |
1971年 | 23070篇 |
1970年 | 21988篇 |
1969年 | 20935篇 |
1968年 | 19769篇 |
1967年 | 17997篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
101.
Oga Emmanuel. A. Peters Erica. N. Mark Katrina Trocin Kathleen Coleman-Cowger Victoria. H. 《Maternal and child health journal》2019,23(2):250-257
Maternal and Child Health Journal - Background Prenatal substance use screening is recommended. The 4 P’s Plus screener includes questions on perceived problematic substance use in parents... 相似文献
102.
103.
Elizabeth A. Mosley PhD MPH Amy J. Schulz PhD MPH MSW Lisa H. Harris MD PhD Barbara A. Anderson PhD 《Women & health》2020,60(7):806-820
ABSTRACT Abortion is legal in South Africa, but negative abortion attitudes remain common and are poorly understood. We used nationally representative South African Social Attitudes Survey data to analyze abortion attitudes in the case of fetal anomaly and in the case of poverty from 2007 to 2016 (n = 20,711; ages = 16+). We measured correlations between abortion attitudes and these important predictors: religiosity, attitudes about premarital sex, attitudes about preferential hiring and promotion of women, and attitudes toward family gender roles. Abortion acceptability for poverty increased over time (b = 0.05, p < .001), but not for fetal anomaly (b = ?0.008, p = .284). Highly religious South Africans reported lower abortion acceptability in both cases (Odds Ratio (OR)anomaly = 0.85, p = .015; ORpoverty = 0.84, p = .02). Premarital sex acceptability strongly and positively predicted abortion acceptability (ORanomaly = 2.63, p < .001; ORpoverty = 2.46, p < .001). Attitudes about preferential hiring and promotion of women were not associated with abortion attitudes, but favorable attitudes about working mothers were positively associated with abortion acceptability for fetal anomaly ((ORanomaly = 1.09, p = .01; ORpoverty = 1.02, p = .641)). Results suggest negative abortion attitudes remain common in South Africa and are closely tied to religiosity, traditional ideologies about sexuality, and gender role expectations about motherhood. 相似文献
104.
F. Murina R. Felice S. Di Francesco L. Nelvastellio I. Cetin 《Gynecological endocrinology》2020,36(5):431-435
AbstractThis study is a single-center, retrospective analysis of postmenopausal women presenting with dyspareunia and vulvar pain, aiming to evaluate relative effectiveness of vestibular CO2 laser therapy as a treatment. Three monthly sessions of laser were performed to each patient and thereafter a three-months follow-up was stablished. A total number of 72 patients undergoing vestibular laser treatment were recruited from patient files in the period between 2016 and 2018. Among these, 39 women also received a concomitant treatment with ospemifene (60?mg/day) during the study period. There was a statistically significant reduction of all the symptoms in both groups up to the three month follow-up. Regarding dryness and dyspareunia, the relief tent to be more prominent in the ospemifene?+?laser group at all follow-ups and remained statistically significant at three-month follow-up. Specifically, vestibular dryness was significantly lower in the ospemifene?+?laser group compared with the laser treatment group (?87% vs???34%, respectively), and the vestibular health score started declining faster in the ospemifene?+?laser group. Although, additional research is needed to understand the mechanism of action, our data shows that a combination regimen of laser and ospemifene may improve clinical effectiveness for long-term treatment of symptoms associated with the under-recognized genitourinary syndrome of menopause. 相似文献
105.
ABSTRACTA monocausal bacteriological understanding of infectious disease orients tuberculosis control efforts towards antimicrobial interventions. A bias towards technological solutions can leave multistranded public health and social interventions largely neglected. In the context of globalising biomedical approaches to infectious disease control, this ethnography-inspired review article reflects upon the implementation of rapid diagnostic technology in low- and middle-income countries. Fieldwork observations in Vietnam provided a stimulus for a critical review of the global rollout of tuberculosis diagnostic technology. To address local needs in tuberculosis control, health managers in resource-poor settings are readily cooperating with international donors to deploy novel diagnostic technologies throughout national tuberculosis programme facilities. Increasing investment in new diagnostic technologies is predicated on the supposition that these interventions will ameliorate disease outcomes. However, suboptimal treatment control persists even when accurate diagnostic technologies are available, suggesting that promotion of singular technological solutions can distract from addressing systemic change, without which disease susceptibility, propagation of infection, detection gaps, diagnostic delays, and treatment shortfalls persist. 相似文献
106.
107.
108.
109.
110.
Worsening pneumonitis due to a pharmacokinetic drug–drug interaction between everolimus and voriconazole in a renal transplant patient
下载免费PDF全文
![点击此处可从《Journal of clinical pharmacy and therapeutics》网站下载免费的PDF全文](/ch/ext_images/free.gif)