全文获取类型
收费全文 | 798篇 |
免费 | 20篇 |
国内免费 | 8篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 59篇 |
妇产科学 | 40篇 |
基础医学 | 93篇 |
口腔科学 | 8篇 |
临床医学 | 147篇 |
内科学 | 171篇 |
皮肤病学 | 43篇 |
神经病学 | 30篇 |
特种医学 | 1篇 |
外科学 | 59篇 |
综合类 | 13篇 |
现状与发展 | 1篇 |
一般理论 | 3篇 |
预防医学 | 64篇 |
眼科学 | 9篇 |
药学 | 64篇 |
中国医学 | 1篇 |
肿瘤学 | 18篇 |
出版年
2017年 | 6篇 |
2015年 | 9篇 |
2014年 | 6篇 |
2013年 | 20篇 |
2012年 | 10篇 |
2011年 | 13篇 |
2010年 | 34篇 |
2009年 | 36篇 |
2008年 | 12篇 |
2007年 | 10篇 |
2006年 | 15篇 |
2005年 | 7篇 |
2004年 | 7篇 |
2003年 | 7篇 |
2002年 | 6篇 |
2001年 | 14篇 |
2000年 | 10篇 |
1999年 | 16篇 |
1998年 | 26篇 |
1997年 | 21篇 |
1996年 | 37篇 |
1995年 | 27篇 |
1994年 | 27篇 |
1993年 | 18篇 |
1992年 | 39篇 |
1991年 | 31篇 |
1990年 | 22篇 |
1989年 | 25篇 |
1988年 | 22篇 |
1987年 | 24篇 |
1986年 | 26篇 |
1985年 | 12篇 |
1984年 | 19篇 |
1983年 | 17篇 |
1982年 | 12篇 |
1981年 | 16篇 |
1980年 | 9篇 |
1979年 | 12篇 |
1978年 | 14篇 |
1977年 | 8篇 |
1976年 | 10篇 |
1975年 | 14篇 |
1974年 | 10篇 |
1972年 | 7篇 |
1970年 | 7篇 |
1969年 | 7篇 |
1968年 | 9篇 |
1967年 | 6篇 |
1966年 | 7篇 |
1965年 | 5篇 |
排序方式: 共有826条查询结果,搜索用时 31 毫秒
1.
2.
3.
CINDY LAU MD RD MARY B GREGOIRE PhD RD FADA 《Journal of the American Dietetic Association》1998,98(11):1303-1307
Objectives To examine quality of food and nutrition services using the ratings of inpatients and patients who had been discharged (postdischarge patients).Design Questionnaires were used to collect perceptions of inpatients and postdischarge patients on the quality of food and nutrition services. A 5-point scale allowed subjects to rate quality from very poor to very good.Subjects Questionnaires were completed by 252 inpatients and 437 postdischarge patients of a midwestern teaching hospital.Statistical analysis Analysis of variance was used to assess differences in quality ratings on the basis of demographic variables. Stepwise regression was used to determine variables that best predicted overall satisfaction. Paired t tests were conducted to compare matched inpatient and postdischarge ratings.Results Ratings of food and nutrition services indicated that patients were satisfied; few differences were found in ratings on the basis of patient demographics. Food quality was the best predictor of overall satisfaction for both inpatients and postdischarge patients. As patient expectations were increasingly met or exceeded, patient ratings of quality increased. The majority of patients in the matched sample gave the same ratings on the inpatient and postdischarge questionnaires.Applications Foodservice managers who desire to improve patient satisfaction should focus attention on meeting or exceeding patient expectations for food quality. J Am Diet Assoc. 1998;98:1303–1307. 相似文献
4.
5.
6.
7.
Y. F. CHEUNG C. F. CHAN C. W. LEE Y. L. LAU 《Journal of paediatrics and child health》1994,30(2):173-175
An outbreak of Pneumocystis carinii pneumonia (PCP) in three patients within a 6 week period was reported. Two patients had acute lymphoblastic leukaemia and one had brain-stem glioma. They shared common features of immuno-suppression and absence of cotrimoxazole prophylaxis and had been nursed in the same room. The severity of PCP and its response to treatment may be related to the degree of immunosuppression. Because of the morbidity and mortality of PCP, chemoprophylaxis should be given to all at-risk cases. Furthermore, isolation of patients with PCP should be considered in view of increasing evidence of nosocomial transmission. 相似文献
8.
9.
M. SILBERSTEIN O. HENNESSY L. LAU 《Journal of Medical Imaging and Radiation Oncology》1992,36(4):334-338
The radiological findings in five patients with pelvic sort tissue neo plasms directly involving the sacroiliac joint, are described. All patients had Computed Tomography (CT) examinations, two of the patients also having Magnetic Resonance Imaging (MRI). The role of imaging in this uncommon entity is discussed as well as the importance of making this diagnosis, thereby excluding unilateral sacroiliitis. The therapeutic implications of this diagnosis relate to local neural involvement, especially the sciatic nerve, and the fact that involvement of the sacroiliac joint by tumors significantly compromises chances of a successful surgical outcome. The role of MR in this condition is not yet certain, but it may prove to be the method of choice in view of its excellent depiction of skeletal neo plasms. 相似文献
10.
PAULA P. MEIER RN DNSc FAAN JANET L. ENGSTROM RN Ph D HENRY H. MANGURTEN MD ELIZABETH ESTRADA RN MS BETH ZIMMERMAN RN MS RAM KOPPARTHI MD 《Journal of obstetric, gynecologic, and neonatal nursing : JOGNN / NAACOG》1993,22(4):338-348
Objective: To describe a model for providing breastfeeding support in the neonatal intensive-care unit (NICU).
Design: Naturalistic, participant observation.
Setting: Suburban Level III NICU.
Patients: One hundred thirty-two mother-infant pairs over 1 year. Infants were hospitalized In the NICU, and mothers had initiated lactation efforts.
Interventions: Investigators provided breastfeeding interventions for the mother-infant pairs, based on identified problems, the research literature, or both.
Main Outcome Measures: Percentage of mothers who were breastfeeding at the time of discharge from the NICU.
Results: Interventions were classified into jive categories: expression and collection of mothers' milk, gavage feeding of expressed mothers' milk, in-hospital breastfeeding sessions, postdischarge breastfeeding management, and additional consultation.
Conclusions: This model was effective In preventing breastfeeding failure for this population. The model can provide the basis for NICU breastfeeding standards of care, protocols, and chart records, or for reimbursement purposes. The model also provides a framework for studying a specific category or breastfeeding intervention. 相似文献
Design: Naturalistic, participant observation.
Setting: Suburban Level III NICU.
Patients: One hundred thirty-two mother-infant pairs over 1 year. Infants were hospitalized In the NICU, and mothers had initiated lactation efforts.
Interventions: Investigators provided breastfeeding interventions for the mother-infant pairs, based on identified problems, the research literature, or both.
Main Outcome Measures: Percentage of mothers who were breastfeeding at the time of discharge from the NICU.
Results: Interventions were classified into jive categories: expression and collection of mothers' milk, gavage feeding of expressed mothers' milk, in-hospital breastfeeding sessions, postdischarge breastfeeding management, and additional consultation.
Conclusions: This model was effective In preventing breastfeeding failure for this population. The model can provide the basis for NICU breastfeeding standards of care, protocols, and chart records, or for reimbursement purposes. The model also provides a framework for studying a specific category or breastfeeding intervention. 相似文献