全文获取类型
收费全文 | 134997篇 |
免费 | 7542篇 |
国内免费 | 1632篇 |
专业分类
耳鼻咽喉 | 2101篇 |
儿科学 | 4430篇 |
妇产科学 | 4674篇 |
基础医学 | 19230篇 |
口腔科学 | 4620篇 |
临床医学 | 10420篇 |
内科学 | 24462篇 |
皮肤病学 | 2861篇 |
神经病学 | 8969篇 |
特种医学 | 4758篇 |
外国民族医学 | 3篇 |
外科学 | 20296篇 |
综合类 | 5544篇 |
一般理论 | 41篇 |
预防医学 | 9164篇 |
眼科学 | 3345篇 |
药学 | 11018篇 |
中国医学 | 911篇 |
肿瘤学 | 7324篇 |
出版年
2021年 | 1322篇 |
2019年 | 1356篇 |
2018年 | 2056篇 |
2017年 | 1552篇 |
2016年 | 1670篇 |
2015年 | 1858篇 |
2014年 | 2476篇 |
2013年 | 3247篇 |
2012年 | 4503篇 |
2011年 | 4787篇 |
2010年 | 2823篇 |
2009年 | 2426篇 |
2008年 | 4211篇 |
2007年 | 4551篇 |
2006年 | 4567篇 |
2005年 | 4165篇 |
2004年 | 4039篇 |
2003年 | 3776篇 |
2002年 | 3584篇 |
2001年 | 7368篇 |
2000年 | 7473篇 |
1999年 | 6165篇 |
1998年 | 1990篇 |
1997年 | 1507篇 |
1996年 | 1068篇 |
1995年 | 918篇 |
1992年 | 3816篇 |
1991年 | 3877篇 |
1990年 | 3610篇 |
1989年 | 3613篇 |
1988年 | 3458篇 |
1987年 | 3303篇 |
1986年 | 3119篇 |
1985年 | 2992篇 |
1984年 | 2073篇 |
1983年 | 1803篇 |
1982年 | 990篇 |
1979年 | 1920篇 |
1978年 | 1192篇 |
1977年 | 992篇 |
1976年 | 925篇 |
1975年 | 1193篇 |
1974年 | 1366篇 |
1973年 | 1417篇 |
1972年 | 1368篇 |
1971年 | 1255篇 |
1970年 | 1142篇 |
1969年 | 1122篇 |
1968年 | 1027篇 |
1967年 | 904篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
M. Simons R. Kimble S. McPhail Z. Tyack 《Burns : journal of the International Society for Burn Injuries》2019,45(8):1792-1809
BackgroundThe measurement of health-related quality of life (HRQoL) provides information about the perceived burden of the health condition and treatments from a lived experience. The Brisbane Burn Scar Impact Profile (caregiver report for young children, BBSIP0–8), developed in 2013, is a proxy-report measure of burn scar-specific HRQoL. The aim of this study was to report its psychometric properties in line with an evaluative purpose.MethodsCaregivers of children up to 8 years of age at risk of burn scarring were recruited into a prospective, longitudinal cohort study. Caregivers completed the BBSIP0–8, Pediatric Quality of Life Inventory and Patient Observer Scar Assessment Scale at baseline (approximately ≥85% of the total body surface area re-epithelialised), 1–2 weeks after baseline and 1-month after baseline. Psychometric properties measured included internal consistency, test–retest reliability, validity and responsiveness.ResultsEighty-six caregivers of mostly male children (55%), of a median age (IQR) of 1 year, 10 months (2 years, 1 month) and total body surface area burn of 1.5% (3.0%) were recruited. Over one third of participants were grafted and 15% had contractures or skin tightness at baseline. Internal consistency of ten item groups ranged from 0.73 to 0.96. Hypothesised correlations of changes in the BBSIP0–8 items with changes in criterion measures supported longitudinal validity (ρ ranging from ?0.73 to 0.68). The majority of item groups had acceptable reproducibility (ICC = 0.65–0.83). The responsiveness of five item groups was supported (AUC = 0.71–0.90).ConclusionThe psychometric properties tested support the use of the BBSIP0–8 as an evaluative measure of burn scar-related health-related quality of life for children aged below eight years in the early post-acute period of rehabilitation. Further investigation at longer time period after burn injury is indicated. 相似文献
5.
6.
Increased arterial stiffness in young normotensive patients with Turner syndrome: associations with vascular biomarkers 下载免费PDF全文
7.
8.
9.
BackgroundWomen suffering from kidney disease are more prone to fertility problems, due to uremia. Fortunately, their fertility rate increases dramatically after renal transplantation. This study analyzes the predictors/risk factors of successful pregnancy with live birth outcome while presenting an overview of the 7-year experience of a single center.MethodsThis retrospective cohort study includes 239 women of reproductive age (18–40 years) who underwent renal transplantation in a tertiary Turkish clinic between October 1, 2011, and August 24, 2017. The subjects were invited to take part in a survey questioning their obstetric characteristics and they were assessed in 2 groups: fertile and infertile. Multivariable linear regression analysis was conducted to determine the predictors of a successful pregnancy.ResultsThirty-five 35 patients wished to become pregnant: 12 got pregnant spontaneously, while 21 failed to become pregnant (spontaneously). The mean age of the patients at the survey was 34 ± 7. Regular menstrual cycles after renal transplantation, tacrolimus-mycophenolate mofetil maintenance protocol, and age at transplantation were found to be predictors of spontaneous pregnancy. The duration of peritoneal dialysis was significantly longer in the infertile group (48 vs 12 months).ConclusionEnd-stage renal disease's negative impacts, including menstrual abnormality and fertility problems, can be overcome by successful kidney transplantation with appropriate immunosuppression. Minimizing the duration of peritoneal dialysis, particularly in patients who desire future fertility, may be accepted as a logical management strategy. 相似文献
10.