首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1062篇
  免费   89篇
  国内免费   19篇
耳鼻咽喉   2篇
儿科学   77篇
妇产科学   4篇
基础医学   132篇
口腔科学   63篇
临床医学   120篇
内科学   188篇
皮肤病学   46篇
神经病学   30篇
特种医学   241篇
外科学   77篇
综合类   29篇
预防医学   48篇
眼科学   17篇
药学   31篇
  1篇
肿瘤学   64篇
  2023年   3篇
  2022年   5篇
  2021年   7篇
  2020年   9篇
  2019年   8篇
  2018年   14篇
  2017年   6篇
  2016年   13篇
  2015年   27篇
  2014年   23篇
  2013年   43篇
  2012年   27篇
  2011年   24篇
  2010年   53篇
  2009年   53篇
  2008年   22篇
  2007年   37篇
  2006年   23篇
  2005年   27篇
  2004年   16篇
  2003年   27篇
  2002年   19篇
  2001年   15篇
  2000年   5篇
  1999年   22篇
  1998年   81篇
  1997年   76篇
  1996年   59篇
  1995年   52篇
  1994年   37篇
  1993年   45篇
  1992年   7篇
  1991年   23篇
  1990年   14篇
  1989年   42篇
  1988年   35篇
  1987年   25篇
  1986年   18篇
  1985年   18篇
  1984年   9篇
  1983年   12篇
  1982年   14篇
  1981年   14篇
  1980年   15篇
  1979年   3篇
  1978年   13篇
  1977年   11篇
  1976年   10篇
  1975年   8篇
  1954年   1篇
排序方式: 共有1170条查询结果,搜索用时 15 毫秒
81.

Background

The interest of clinical research in aging males increased in recent years and thereby the interest to measure health-related quality of life (HRQoL) and symptoms of aging men. The Aging Males' Symptoms scale (AMS) became the most commonly used scale to measure HRQoL and symptoms in aging males in many countries worldwide. The aim of this paper is to review the current state of the instrument particularly concerning versions of the scale in different languages in the light of the quality of the translation process.

AMS versions available

Most of the translations were performed following international methodological recommendations for linguistic & cultural adaptation of HRQoL instruments. Mainly the English version was used as source language for the translation into Dutch, Spanish, Portuguese, Italian, Swedish, and Japanese (attached as additional PDF-files). Preliminary versions that were derived only from forward translations are of secondary quality and available in Finnish, Flemish, and Russian. It is recommended to complete the translation process for the latter languages before using them in international studies.

Translations in process

The AMS scale is in the process of consensus finding of two existing French versions, and the versions in the Korean, Thai, and Indonesian languages have not yet been completed in the translation process.

Conclusion

The AMS scale is obviously a valuable tool for assessing health related quality of life in aging men, because it is used worldwide. It is a standardized scale according to psychometric norms. Most of the currently available language versions were translated following international standards for linguistic and cultural translation of quality of life scales. Assistance is offered to help interested parties in the translation process.  相似文献   
82.
83.
A patient with severe ocular albinism was fitted with a prosthetic soft contact lens which improved both photophobic symptoms and facial cosmesis.  相似文献   
84.
85.
Fox  AJ; Pelz  DM; Lee  DH 《Radiology》1990,177(1):51
  相似文献   
86.
Anxiety in patients undergoing MR imaging   总被引:6,自引:0,他引:6  
Quirk  ME; Letendre  AJ; Ciottone  RA; Lingley  JF 《Radiology》1989,170(2):463-466
To determine and quantify the major sources of anxiety for patients undergoing magnetic resonance (MR) imaging and to suggest means by which to eliminate or diminish their negative effects, the authors studied anxiety in 46 subjects. Of these, 20 randomly selected subjects who successfully completed the examination participated in exit interviews. Six subjects who terminated the examination before completion also completed exit interviews. Pre-imaging and postimaging questionnaires (state-trait anxiety inventory) were administered to measure anxiety in the 20 other subjects. Anxiety was associated with the constrictive dimensions of the magnet bore, examination duration, coil noise, and temperature within the bore. Preparation at the point of referral was consistently absent, incomplete, or misleading. Patients used identifiable strategies to cope with the examination: blinding, breathing relaxation techniques, visualization of pleasant images, and performance of mental exercises.  相似文献   
87.
Cerebrospinal fluid rhinorrhea: depiction with MR cisternography in dogs   总被引:2,自引:0,他引:2  
Canine cerebrospinal fluid rhinorrhea, which occurs frequently in purebred beagles, was demonstrated in two dogs on magnetic resonance images after cisternal introduction of gadolinium-DTPA dimeglumine.  相似文献   
88.
SUMMARY In 56 patients, frequency analysis of the electrocardiogramof ventricular fibrillation exhibited power spectra with a distinctdominant frequency. The greatest success for resuscitation fromventricular fibrillation is recorded when ventricular fibrillationdevelops after the patient comes under coronary care. Of the41 patients in whom the onset and first 8 s of ventricular fibrillationwere artefact-free the mean dominant frequency of primary ventricularfibrillation (no cardiogenic shock or cardiac failure) in 21patients was 6.2±0.2 Hz, significantly higher than themean dominant frequency of the first 8 s of secondary ventricularfibrillation (cardiogenic shock or heart failure) (4.0±0.2Hz, 20 patients, p =0.0001). In these patients the peak-to-troughamplitude (ECG) of the first 8 s of ventricular fibrillationwas similar in both primary and secondary ventricular fibrillationas was the mean duration of ventricular fibrillation prior tothe first DC shock. There was a significantly lower successrate for resuscitation from secondary ventricular fibrillation(6 of 20 patients) compared with resuscitation from primaryventricular fibrillation (18 of 21 patients, x2 17.8, p=0.001).Of the remaining 15 patients who were collapsed between 3 and20 min before the arrival of the mobile coronary care unit,the dominant frequency of the first 8 s of ventricular fibrillationfell with increased duration of collapse (from 5.5 Hz at 3 minto a mean of 2.1 Hz at 20 min). Four of these 15 patients whosurvived the initial arrest had a mean dominant frequency of5.2±0.3 Hz, which was significantly higher than the meandominant frequency (3.1±0.3 Hz, p<0.01) of the 11patients who were not resuscitated. This study shows that low frequency ventricular fibrillationis indicative of a poor chance of successful resuscitation.Alteration of the frequency may increase resuscitation success.  相似文献   
89.
90.
Since 1993, the infection consultation service for bacteraemia has seen 310 patients in the Medical and Surgical Directorates at Ninewells Hospital and Kings Cross Hospital. A random sample of 100 was audited. Case-notes were incomplete for five patients, leaving 95 fully-audited patients. Clinical outcome measures were death from infection, and readmission within 2 weeks of discharge. Initial treatment was inconsistent with antibiotic policy in 46 patients (48%). Antibiotic treatment was changed in 37 (80%) of these patients: increased in intensity in 19 (41%) and decreased in 18 (39%). Changes were also made in 30 (61%) of the 49 patients whose initial treatment was consistent with sepsis policy-increased in seven (14%) and decreased in 23 (47%). Median daily antibiotic costs were lowered in patients whose initial treatment was consistent with sepsis policy (pounds 10.10 vs. pounds 7.28, p = 0.0274). However, in the other patients, savings were balanced by increases (p = 0.7696). Consultation required one consultant session per week (3.5 h) and the audit required an additional 16 consultant sessions. Seven patients died, but only one death was directly related to infection. Six patients were readmitted to hospital within 2 weeks, in three due to recurrence of infection. Changes to treatment were recommended in the majority of patients, regardless of whether initial treatment complied with the sepsis policy. The service primarily redistributed resources rather than reducing costs. A fully audited service requires considerable consultant time, but we believe such time is well spent.   相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号