全文获取类型
收费全文 | 8793篇 |
免费 | 187篇 |
国内免费 | 6篇 |
专业分类
耳鼻咽喉 | 78篇 |
儿科学 | 353篇 |
妇产科学 | 2302篇 |
基础医学 | 861篇 |
口腔科学 | 437篇 |
临床医学 | 881篇 |
内科学 | 884篇 |
皮肤病学 | 154篇 |
神经病学 | 432篇 |
特种医学 | 423篇 |
外科学 | 831篇 |
综合类 | 84篇 |
一般理论 | 2篇 |
预防医学 | 724篇 |
眼科学 | 191篇 |
药学 | 204篇 |
中国医学 | 47篇 |
肿瘤学 | 98篇 |
出版年
2018年 | 51篇 |
2017年 | 78篇 |
2015年 | 54篇 |
2014年 | 77篇 |
2013年 | 261篇 |
2012年 | 54篇 |
2011年 | 113篇 |
2010年 | 132篇 |
2009年 | 284篇 |
2008年 | 170篇 |
2007年 | 113篇 |
2006年 | 141篇 |
2005年 | 127篇 |
2004年 | 126篇 |
2003年 | 100篇 |
2002年 | 72篇 |
2001年 | 97篇 |
2000年 | 88篇 |
1999年 | 313篇 |
1998年 | 291篇 |
1997年 | 345篇 |
1996年 | 373篇 |
1995年 | 315篇 |
1994年 | 277篇 |
1993年 | 201篇 |
1992年 | 216篇 |
1991年 | 236篇 |
1990年 | 168篇 |
1989年 | 164篇 |
1988年 | 165篇 |
1987年 | 136篇 |
1986年 | 177篇 |
1985年 | 135篇 |
1984年 | 122篇 |
1983年 | 164篇 |
1982年 | 116篇 |
1981年 | 99篇 |
1980年 | 122篇 |
1979年 | 113篇 |
1978年 | 79篇 |
1977年 | 108篇 |
1976年 | 120篇 |
1975年 | 116篇 |
1974年 | 90篇 |
1973年 | 88篇 |
1972年 | 62篇 |
1971年 | 57篇 |
1970年 | 68篇 |
1961年 | 56篇 |
1922年 | 60篇 |
排序方式: 共有8986条查询结果,搜索用时 31 毫秒
1.
2.
3.
4.
5.
Socioeconomic determinants of health related quality of life in childhood and adolescence: results from a European study . von Rueden , U. , Gosch , A. , Rajmil , L. , Bisegger , C. , Ravens-Sieberer , U. , the European KIDSCREEN group ( 2006 ) Journal of Epidemiology and Community Health , 60 , 130 – 135 . 相似文献
6.
7.
Anorectal function in the solitary rectal ulcer syndrome 总被引:8,自引:6,他引:2
Nigel R. Womack F.R.C.S. Professor Norman S. Williams M.S. John H. Holmfield Mist John F. Morrison Ph.d. 《Diseases of the colon and rectum》1987,30(5):319-323
The anorectal function of nine patients with solitary rectal ulcer syndrome (SRUS) (5 F: 4 M, median age, 27 (range, 19–41
years) and nine control subjects (5 F: 4 M, median age, 47 (35–66)P<0.01) has been investigated by a new technique that radiologically visualizes the anorectum during voiding of a semisolid
contrast medium, while simultaneously measuring intrarectal pressure and anal sphincter EMG activity. A degree of rectal prolapse
was demonstrated in eight of the SRUS patients; six of these lesions were clinically occult. Abnormal failure of the anal
sphincter to relax on voiding was present in seven of the SRUS patients. These abnormalities resulted in the SRUS patients
requiring a greater increase in intrarectal pressure (median, 100 cm water) to void than the control subjects (median, 65
cm water,P<0.01). This combination of high intrarectal pressure and rectal prolapse during straining seems to be the cause of SRUS
This work was supported by a grant from the Medical Research Council. 相似文献
8.
Gordon J. Harris Ph.D. Instructor Jonathan M. Links Ph.D. Associate Professor Godfrey D. Pearlson M.B. B.S. Director Edwaldo E. Camargo M.D. Associate Professor 《Psychiatry research》1991,40(3):167-180
We developed a semiautomatic method termed “cortical circumferential profiling” for objective analysis of cerebral cortex function in emission tomographic neuroimaging studies. This method treats cortex as a continuous ring near the outer brain edge. A computer algorithm samples the cortex at 60 contiguous, equiangular locations, using 1-cm2 samples. These values are plotted as a function of cortical angle to produce the cortical circumferential profile. This method was used in a study of regional cerebral perfusion in 15 patients with Alzheimer's disease and 8 elderly control subjects using N-isopropyl [I-123]-iodoamphetamine. Cortical circumferential profiling decreases variability, examines the entire cortex within slices at preselected levels above the orbital-meatal line, and facilitates intrasubject and intersubject comparisons. 相似文献
9.
Fulminant hepatic failure associated with aplastic anaemia after treatment with danazol. Case report
T. NAKAJIMA Consultant N. MIZUSHIMA Registrar H. MATSUDA Registrar M. MATSUMOTO Registrar K. TAMAKOSHI Senior Registrar H. ISHII Consultant S. MORIOKA Consultant K. KANAI Associate Professor Y. IKEDA Senior Lecturer T. TERAO Associate Professor 《BJOG : an international journal of obstetrics and gynaecology》1986,93(9):1013-1015
10.
IC Uluibau Postgraduate Student T. Jaunay Registrar † AN Goss Professor Director ‡ 《Australian dental journal》2005,50(S2):S74-S81
Background : Severe odontogenic infections are serious potentially lethal conditions. Following the death of a patient in the authors' institution this study was initiated to determine the risk factors, management and outcome of a consecutive series of patients.
Methods : All patients admitted to the Royal Adelaide Hospital under the care of the Oral and Maxillofacial Surgery Unit with odontogenic infections in calendar year 2003 were investigated. Detailed information relative to their pre-presentation history, surgical and anaesthetic management and outcome was obtained and analysed.
Results : Forty-eight patients, 32M, 16F, average age 34.5, range 19 to 88 years were treated. All presented with pain and swelling, with 21 (44 per cent) having trismus. Forty-four (92 per cent) were as a result of dental neglect and four (8 per cent) were regular dental patients having endodontic treatment which failed. Of those known to have been treated prior to presentation, most had been on antibiotics. Most patients had aggressive surgical treatment with extraction, surgical drainage, high dose intravenous antibiotics and rehydration. The hospital stay was 3.3 (range 1–16) days. Patients requiring prolonged intubation and high dependency or intensive care (40 per cent) had longer hospitalization. No patient died and all fully recovered.
Conclusion : Severe odontogenic infections are a serious risk to the patient's health and life. Management is primarily surgical with skilled anaesthetic airway management. Antibiotics are required in high intravenous doses as an adjunct and not as a primary treatment. 相似文献
Methods : All patients admitted to the Royal Adelaide Hospital under the care of the Oral and Maxillofacial Surgery Unit with odontogenic infections in calendar year 2003 were investigated. Detailed information relative to their pre-presentation history, surgical and anaesthetic management and outcome was obtained and analysed.
Results : Forty-eight patients, 32M, 16F, average age 34.5, range 19 to 88 years were treated. All presented with pain and swelling, with 21 (44 per cent) having trismus. Forty-four (92 per cent) were as a result of dental neglect and four (8 per cent) were regular dental patients having endodontic treatment which failed. Of those known to have been treated prior to presentation, most had been on antibiotics. Most patients had aggressive surgical treatment with extraction, surgical drainage, high dose intravenous antibiotics and rehydration. The hospital stay was 3.3 (range 1–16) days. Patients requiring prolonged intubation and high dependency or intensive care (40 per cent) had longer hospitalization. No patient died and all fully recovered.
Conclusion : Severe odontogenic infections are a serious risk to the patient's health and life. Management is primarily surgical with skilled anaesthetic airway management. Antibiotics are required in high intravenous doses as an adjunct and not as a primary treatment. 相似文献