收费全文 | 1275678篇 |
免费 | 94230篇 |
国内免费 | 1986篇 |
耳鼻咽喉 | 18189篇 |
儿科学 | 42274篇 |
妇产科学 | 37838篇 |
基础医学 | 187117篇 |
口腔科学 | 35382篇 |
临床医学 | 108183篇 |
内科学 | 251524篇 |
皮肤病学 | 26519篇 |
神经病学 | 99235篇 |
特种医学 | 49985篇 |
外国民族医学 | 366篇 |
外科学 | 197645篇 |
综合类 | 26516篇 |
现状与发展 | 1篇 |
一般理论 | 300篇 |
预防医学 | 92611篇 |
眼科学 | 29082篇 |
药学 | 97809篇 |
1篇 | |
中国医学 | 2496篇 |
肿瘤学 | 68821篇 |
2018年 | 11818篇 |
2015年 | 11623篇 |
2014年 | 16014篇 |
2013年 | 24363篇 |
2012年 | 33573篇 |
2011年 | 35988篇 |
2010年 | 21228篇 |
2009年 | 20028篇 |
2008年 | 35009篇 |
2007年 | 37980篇 |
2006年 | 38533篇 |
2005年 | 37826篇 |
2004年 | 36412篇 |
2003年 | 35397篇 |
2002年 | 34944篇 |
2001年 | 58111篇 |
2000年 | 59594篇 |
1999年 | 50700篇 |
1998年 | 14241篇 |
1997年 | 12813篇 |
1996年 | 13074篇 |
1995年 | 12346篇 |
1994年 | 11761篇 |
1993年 | 10865篇 |
1992年 | 41004篇 |
1991年 | 40368篇 |
1990年 | 39900篇 |
1989年 | 38713篇 |
1988年 | 36113篇 |
1987年 | 35353篇 |
1986年 | 33727篇 |
1985年 | 32140篇 |
1984年 | 23928篇 |
1983年 | 20823篇 |
1982年 | 12382篇 |
1981年 | 10928篇 |
1980年 | 10205篇 |
1979年 | 22635篇 |
1978年 | 15877篇 |
1977年 | 13730篇 |
1976年 | 12972篇 |
1975年 | 14201篇 |
1974年 | 16684篇 |
1973年 | 16079篇 |
1972年 | 15318篇 |
1971年 | 14230篇 |
1970年 | 13215篇 |
1969年 | 12731篇 |
1968年 | 11979篇 |
1967年 | 10479篇 |
Pulse wave velocity remained significantly higher in previously pre-eclamptic women than non-pregnant controls up to three months after delivery (p < 0.05), then it reduced to nonsignificant values. All blood pressure indices (central and brachial pressures), were higher in previously pre-eclamptic women as compared to nonpregnant controls up to one year postpartum.
Regional (aortic) arterial stiffness, though it persists for some time after delivery, is transitory in previously pre-eclamptic women from the rural Africa setting. However, their increase blood pressure is an indication of compromised arterial compliance in women previously with pre-eclampsia. 相似文献
Materials and methods: Medline, Embase, and Web of Science were searched. According to international guidelines, low bone mineral density was defined as Z-score?≤??2.0. In addition, we focused on Z-score?≤??1.0 because this may indicate a tendency towards low bone mineral density.
Results: We included 16 studies, comprising 465 patients aged 1–65?years. Moderate and conflicting evidence for low bone mineral density (Z-score?≤??2.0) was found for several body parts (total proximal femur, total body, distal femur, lumbar spine) in children with Gross Motor Function Classification Scales II and III. We found no evidence for low bone mineral density in children with Gross Motor Function Classification Scale I or adults, although there was a tendency towards low bone mineral density (Z-score?≤??1.0) for several body parts.
Conclusions: Although more high-quality research is needed, results indicate that deficits in bone mineral density are not restricted to non-ambulatory people with cerebral palsy.
- Implications for Rehabilitation
Although more high-quality research is needed, including adults and fracture risk assessment, the current study indicates that deficits in bone mineral density are not restricted to non-ambulatory people with CP.
Health care professionals should be aware that optimal nutrition, supplements on indication, and an active lifestyle, preferably with weight-bearing activities, are important in ambulatory people with CP, also from a bone quality point-of-view.
If indicated, medication and fall prevention training should be prescribed.