全文获取类型
收费全文 | 516篇 |
免费 | 45篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 44篇 |
妇产科学 | 13篇 |
基础医学 | 61篇 |
口腔科学 | 11篇 |
临床医学 | 85篇 |
内科学 | 105篇 |
皮肤病学 | 28篇 |
神经病学 | 17篇 |
特种医学 | 83篇 |
外科学 | 37篇 |
综合类 | 21篇 |
预防医学 | 9篇 |
眼科学 | 7篇 |
药学 | 21篇 |
中国医学 | 1篇 |
肿瘤学 | 16篇 |
出版年
2021年 | 2篇 |
2020年 | 2篇 |
2019年 | 2篇 |
2018年 | 7篇 |
2017年 | 8篇 |
2016年 | 7篇 |
2015年 | 7篇 |
2014年 | 14篇 |
2013年 | 29篇 |
2012年 | 11篇 |
2011年 | 14篇 |
2010年 | 29篇 |
2009年 | 26篇 |
2008年 | 18篇 |
2007年 | 13篇 |
2006年 | 14篇 |
2005年 | 15篇 |
2004年 | 7篇 |
2003年 | 13篇 |
2002年 | 11篇 |
2001年 | 4篇 |
1999年 | 6篇 |
1998年 | 20篇 |
1997年 | 42篇 |
1996年 | 30篇 |
1995年 | 20篇 |
1994年 | 23篇 |
1993年 | 21篇 |
1992年 | 9篇 |
1991年 | 4篇 |
1990年 | 9篇 |
1989年 | 26篇 |
1988年 | 13篇 |
1987年 | 11篇 |
1986年 | 13篇 |
1985年 | 14篇 |
1984年 | 6篇 |
1983年 | 1篇 |
1982年 | 2篇 |
1981年 | 4篇 |
1980年 | 6篇 |
1979年 | 2篇 |
1978年 | 4篇 |
1977年 | 9篇 |
1976年 | 4篇 |
1975年 | 4篇 |
1963年 | 1篇 |
1956年 | 1篇 |
1955年 | 1篇 |
1932年 | 1篇 |
排序方式: 共有561条查询结果,搜索用时 15 毫秒
141.
142.
S Slater MJ Crawford MA Kabbouche SL LeCates S Cherney P Vaughan A Segers P Manning D Burdine SW Powers & AD Hershey 《Cephalalgia : an international journal of headache》2009,29(9):969-973
The aim of this study was to evaluate the impact of gender and age on headache characteristics and disability. Headache characteristics were assessed at an initial visit to a paediatric specialty care centre and five follow-up visits. A total number of 4121 patients were evaluated. Fifty-eight per cent of the sample was female. Boys were younger at their first headache and initial visit. They more frequently described headache pain as squeezing and location as top of the head. Girls reported more frequent and longer headaches. Girls more often described headache pain as sharp and location as back of the head. Age accounted for more variance than gender in headache severity, duration, frequency and disability. Gender differences exist in headache characteristics. Age is also an important factor in the variability in characteristics and disability. Longitudinal studies are needed to describe further the natural history of headaches in childhood and compare outcome between genders. 相似文献
143.
The prevalence of maternal depression was investigated in the mothers of 96 children: 30 premature infants at risk for the development of cerebral palsy; 35 premature infants considered not to be at risk for the development of cerebral palsy; and 31 healthy fullterm infants. There were equally high levels of depression in all three groups of mothers, regardless of birth status, prediction of disability, or presence of actual disability, throughout the first year of the children's lives. Depressed mothers were, however, found to have significantly more psychosocial stress. An early physiotherapy intervention had no effect on the prevalence of depression in mothers whose children were at risk for the development of cerebral palsy. 相似文献
144.
145.
JH Baumer AD Edelsten BC Howlett C Owens CA Pennock DC Savage 《Archives of disease in childhood》1982,57(3):195-199
Ninety diabetic children each provided at least one 24-hour blood glucose profile at home using an impregnated filter paper strip. The mean 24-hour blood glucose level correlated significantly with urine control, height velocity, and Hb A1. The correlation coefficient for individual blood glucose values (r = 0.61) and for mean 24-hour blood glucose values (r = 0.73) repeated within 14 days showed an acceptable degree of reproducibility for the blood glucose profiles. Mean 24-hour blood glucose values fell significantly overall (11.4 to 9.8 mmol/l; 205 to 176 mg/100 ml) in 47 children who had repeated profiles more than 2 weeks apart. Unrecognised nocturnal hypoglycaemia (less than 3.0 mmol/l; 54 mg/100 ml) was found in 19% of children on twice-daily Semitard insulin. The study shows that children over age 7 years manage home blood glucose monitoring without difficulty. It shows that the results are reproducible and correlate with other indices of control, and that it provides a practical basis for the improvement of diabetic control. 相似文献
146.
147.
Total obstruction of the airways caused all respiratory efforts to stop on 15 occasions in 10 preterm babies. This was not seen in 60 studies on 38 term babies. These findings suggest that failure to achieve an oral airway may not be the only mechanism by which upper airway obstruction might cause the cot death syndrome. 相似文献
148.
Frederick?AD?KaonaEmail author Mary?Tuba Seter?Siziya Lenganji?Sikaona 《BMC public health》2004,4(1):68
Background
The treatment guidelines for tuberculosis treatment under Directly Observed Treatment, Short-course (DOTS) have been a common strategy for TB treatment in Zambia. The study was carried out in Ndola, Zambia, to investigate factors contributing to treatment non-adherence and knowledge of TB transmission among patients on TB treatment, in order to design a community-based intervention, that would promote compliance. 相似文献149.
MINE ALIKAN DILAD TÜRKDOGAN MERAL
ZMEN TALAT CANTEZ AYNUR BASLO SELUK APAK 《Pediatrics international》1995,37(1):94-96
A 5.5 year old Turkish boy who suffered from progressive muscle stiffness was diagnosed as having continuous muscle fiber activity syndrome. Electromyography showed continuous motor neuron activity at rest and following intravenous injection of diazepam. Peripheral nerve block, spinal and general anesthesia diminished the spontaneous activities. The clinical and electrophysiological findings of our case were compared to the previously reported cases with emphasis on the heterogeneity of the syndrome. 相似文献
150.
PJ WALKER MJ EDWARDS V PETROFF I WILSON AD TEMPERLEY J SEABROOK 《Journal of paediatrics and child health》1995,31(4):358-361
A neonate is reported here, who was born with severe mandibular hypoplasia, complete absence of the tongue, unilateral choanal atresia, contralateral choanal stenosis and developed severe airway obstruction at birth. Arrested development of the ventral first branchial arch most likely underlies the clinical deficits. Most reported cases of agnathia have been lethal but the infant reported here has survived into infancy with a tracheostomy and feeding gastrostomy. Her clinical features, assessment and management are discussed. 相似文献