全文获取类型
收费全文 | 772篇 |
免费 | 45篇 |
国内免费 | 21篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 38篇 |
妇产科学 | 12篇 |
基础医学 | 85篇 |
口腔科学 | 36篇 |
临床医学 | 66篇 |
内科学 | 144篇 |
皮肤病学 | 15篇 |
神经病学 | 26篇 |
特种医学 | 100篇 |
外科学 | 109篇 |
综合类 | 52篇 |
预防医学 | 50篇 |
眼科学 | 14篇 |
药学 | 58篇 |
肿瘤学 | 31篇 |
出版年
2022年 | 8篇 |
2021年 | 13篇 |
2019年 | 9篇 |
2018年 | 12篇 |
2017年 | 7篇 |
2016年 | 6篇 |
2015年 | 15篇 |
2014年 | 11篇 |
2013年 | 35篇 |
2012年 | 19篇 |
2011年 | 28篇 |
2010年 | 25篇 |
2009年 | 33篇 |
2008年 | 16篇 |
2007年 | 50篇 |
2006年 | 51篇 |
2005年 | 27篇 |
2004年 | 33篇 |
2003年 | 22篇 |
2002年 | 22篇 |
2001年 | 16篇 |
2000年 | 14篇 |
1999年 | 12篇 |
1998年 | 32篇 |
1997年 | 34篇 |
1996年 | 41篇 |
1995年 | 22篇 |
1994年 | 15篇 |
1993年 | 22篇 |
1992年 | 9篇 |
1991年 | 7篇 |
1990年 | 3篇 |
1989年 | 28篇 |
1988年 | 13篇 |
1987年 | 16篇 |
1986年 | 13篇 |
1985年 | 11篇 |
1984年 | 9篇 |
1983年 | 6篇 |
1982年 | 5篇 |
1981年 | 6篇 |
1980年 | 10篇 |
1979年 | 4篇 |
1978年 | 4篇 |
1977年 | 5篇 |
1976年 | 5篇 |
1975年 | 6篇 |
1965年 | 3篇 |
1962年 | 3篇 |
1935年 | 3篇 |
排序方式: 共有838条查询结果,搜索用时 15 毫秒
31.
Shergill IS Foley CL Arya M Bott SR Mundy AR 《Hospital medicine (London, England : 1998)》2002,63(8):456-459
Testicular torsion is a true vascular emergency-prompt diagnosis and surgical management is critical. If treatment is not instigated within 4-6 hours of the onset of pain, irreversible testicular infarction may result, necessitating orchidectomy. This review presents the key features, management principles and medicolegal considerations of this serious condition. 相似文献
32.
33.
Bott SR Young MP Kellett MJ Parkinson MC;Contributors to the UCL Hospitals' Trust Radical Prostatectomy Database 《BJU international》2002,89(9):886-889
OBJECTIVE; To determine whether anterior prostatic tumours are adequately sampled using the Stamey sextant protocol, as a fifth of prostate cancers are anterior in distribution at radical prostatectomy. MATERIALS AND METHODS: All tumours (62) with an anterior distribution (>or=75% of the tumour anterior to the urethra) on radical prostatectomy whole-mounts, and in which the number and results of the sextant biopsies were available, were extracted from a prostate cancer database. Sixty-one posterior tumours (>or=75% of the malignant tissue posterior to the urethra) and their corresponding sextant biopsies were also retrieved for comparison. The number of biopsy sessions, the number of cores involved and the summated tumour length were recorded, together with the prostate gland weight, the tumour volume and the site of >or=75% of tumour in the superior-inferior axis. RESULTS: Anterior tumours required significantly more biopsy sessions to diagnose prostate cancer than posterior neoplasms (anterior, one set 47; > one set 15; posterior, one set 57; > one set, four, P=0.007). Anterior tumours had fewer cores with tumour involvement and less summated tumour length than had posterior cancers. The mean (sd) number of positive cores was; anterior 1.8 (1.01), posterior 2.50 (1.30) (P=0.001); the summated tumour length was; anterior 5.05 (4.10) mm, posterior 9.25 (7.80) mm (P<0.001). There was no significant difference in gland weight (mean anterior 43.8 g; posterior 48.3 g, P=0.3) or tumour volume (mean anterior 1.85 mL; posterior 1.49 mL, P=0.11) between the groups. There was no significant difference between the incidence of anterior and posterior neoplasms with respect to their position in the superior-inferior axis (P=0.96). CONCLUSIONS: Anterior prostate tumours account for 21% of all prostate cancers. They more often require multiple sets of sextant biopsies for diagnosis, and yield smaller areas of cancer on core biopsies than do posterior tumours in glands of similar weight and tumour volume. If prostate cancer is suspected clinically but biopsies are negative, targeting the anterior gland at subsequent prostatic biopsy should be considered. 相似文献
34.
Although renal abnormalities have been described in children with Alagille's syndrome, cystic kidney disease has not often been documented, and then usually only at necropsy. Three children with Alagille's syndrome are described, in two of whom a unilateral multicystic dysplastic kidney was detected by prenatal ultrasound; in the other, a solitary cortical cyst was found later in childhood. All have normal renal function, growth, and liver synthetic function but continue to have clinical and biochemical signs of cholestasis. These cases show that unilateral cystic kidney disease with or without renal dysplasia may be associated with Alagille's syndrome, that the clinical course is not necessarily unfavourable, and that Alagille's syndrome should be included in the differential diagnosis of cystic kidney disorders associated with cholestatic liver disease. Patients with Alagille's syndrome should be evaluated by renal ultrasound. 相似文献
35.
36.
37.
38.
SR Mehta VSM HRA Prabhu AJ Swamy Harinder Dhaliwal Dinesh Prasad 《Medical Journal Armed Forces India》2004,60(1):25-27
The varied clinical manifestations and management of 14 male patients with delirium tremens (DT) have been studied. Eight patients were initially hospitalised for diseases unrelated to ethanol abuse i.e. 2 each for gun shot wound, myocardial infarction and stroke, and one each for pneumonia and gastroenteritis. One patient was going through withdrawal because of prodrome of viral hepatitis before he was hospitalised for uncontrolled agitation and delirium. Two known cases of mild essential hypertension on dietary therapy reported for agitation, abnormal behaviour, a single episode of tonic clonic seizure and hypertensive encephalopathy as they could not/did not get alcohol for 3 days. Three patients presented denovo with DT without concomitant illness. The other features besides delirium and hallucinations were tremulousness in 10, tachycardia in 12, fever in 3, diaphoresis in 2 and tonic clonic seizures in 4 patients. The symptoms fluctuated markedly at short intervals and 2 patients did not have any features of sympathetic overactivity. Altered hepatic biochemical parameters and ketonuria with normal blood sugar were noted in 4 and one patients respectively. Other biochemical parameters including serum electrolytes were normal. CT scan brain done for 5 patients revealed subdural haematoma in one. Cerebro spinal fluid (CSF) and EEG findings were noncontributory. All made good recovery with heavy doses of intravenous vitamin B complex, glucose and oral benzodiazepine. Short course of haloperidol was used in 2 patients. Two patients developed pancreatitis during follow up. All patients made complete recovery, and 8 patients have been followed for 8 to 12 months without relapse. The reason for hospitalisation in such cases is often unrelated to alcohol abuse; hence a detailed history of alcoholism is mandatory to identify those at risk as well as for prompt treatment and decreasing the mortality.Key Words: Alcohol withdrawal, Concomitant illnesses, Delirium, Precipitating events 相似文献
39.
40.