全文获取类型
收费全文 | 1443153篇 |
免费 | 98864篇 |
国内免费 | 1992篇 |
专业分类
耳鼻咽喉 | 19467篇 |
儿科学 | 50575篇 |
妇产科学 | 37847篇 |
基础医学 | 197513篇 |
口腔科学 | 35044篇 |
临床医学 | 122668篇 |
内科学 | 287009篇 |
皮肤病学 | 28640篇 |
神经病学 | 115879篇 |
特种医学 | 59644篇 |
外国民族医学 | 660篇 |
外科学 | 223515篇 |
综合类 | 29288篇 |
现状与发展 | 1篇 |
一般理论 | 377篇 |
预防医学 | 112645篇 |
眼科学 | 30508篇 |
药学 | 103684篇 |
2篇 | |
中国医学 | 3045篇 |
肿瘤学 | 85998篇 |
出版年
2018年 | 33891篇 |
2017年 | 26310篇 |
2016年 | 29381篇 |
2015年 | 13196篇 |
2014年 | 17858篇 |
2013年 | 26864篇 |
2012年 | 42499篇 |
2011年 | 57845篇 |
2010年 | 40518篇 |
2009年 | 32685篇 |
2008年 | 54988篇 |
2007年 | 59615篇 |
2006年 | 39909篇 |
2005年 | 40402篇 |
2004年 | 40736篇 |
2003年 | 40511篇 |
2002年 | 38084篇 |
2001年 | 64218篇 |
2000年 | 66861篇 |
1999年 | 56545篇 |
1998年 | 15303篇 |
1997年 | 13936篇 |
1996年 | 14257篇 |
1995年 | 13540篇 |
1994年 | 12850篇 |
1993年 | 11834篇 |
1992年 | 44576篇 |
1991年 | 43539篇 |
1990年 | 42327篇 |
1989年 | 40174篇 |
1988年 | 36945篇 |
1987年 | 36269篇 |
1986年 | 33637篇 |
1985年 | 32305篇 |
1984年 | 24156篇 |
1983年 | 20286篇 |
1982年 | 11747篇 |
1981年 | 10692篇 |
1980年 | 9546篇 |
1979年 | 21345篇 |
1978年 | 14829篇 |
1977年 | 12535篇 |
1976年 | 11701篇 |
1975年 | 12631篇 |
1974年 | 14678篇 |
1973年 | 14118篇 |
1972年 | 12945篇 |
1971年 | 11729篇 |
1970年 | 11069篇 |
1969年 | 10044篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
111.
112.
113.
In der Behandlung von Frakturen spielt die Analgesie eine wesentliche Rolle. Es stellt sich daher die Frage, ob in der Klinik h?ufig eingesetzte Analgetika wie Tramadol oder Diclofenac negative Wirkungen auf die Knochenbruchheilung haben. 相似文献
114.
115.
116.
The pulsed tunable dye laser (PTDL) is generally considered to have a very low incidence of adverse effects, allowing it to become the treatment of choice for the majority of port wine stains (PWS). The low incidence of adverse effects has led to difficulties in determining the true incidence and type of adverse effect seen with this laser. We therefore undertook a retrospective study of 701 patients with PWS, who received 3877 full treatments to determine the incidence and type of adverse effects seen following treatment with the PTDL. Blistering and crusting were seen in 5·9% and 0·7% of patients, respectively, but were transient events which usually healed without permanent sequelae. Hyperpigmentation was the most frequently observed adverse effect seen in 9·1% of patients but generally showed gradual resolution over 6–12 months. Hypopigmentation was infrequent, seen in 1.4% of patients. The most significant adverse effects were atrophic and hypertrophic scarring seen in 4·3% and 0·7% of patients, respectively. Our observations show that there is a small but definite risk of atrophic scarring with a predisposition for younger patients. Hypertrophic scarring can occur albeit rarely and there may be a predisposition towards the neck. In most cases test areas were not predictive of scarring. This underlines the need for a full discussion of scarring risk in patients with PWS undergoing treatment with the PTDL. 相似文献
117.
118.
A 60-year-old man developed hemiballismus due to an intracranial hemorrhage involving the subthalamic nucleus 8 weeks after orthotopic liver transplantation. The hemorrhage was thought to be due to alterations in cerebral blood flow following a period of hypotensive shock due to sepsis, in the presence of anticoagulant therapy and thrombocytopenia. This represents a rare neurologic complication of liver transplantation. 相似文献
119.
P. Lamesch A. Lamesch 《Langenbeck's archives of surgery / Deutsche Gesellschaft fur Chirurgie》1993,378(3):171-177
We report on the case of a 6-year-old girl admitted as an emergency with an acute abdomen with the diagnosis of peritonitis; clinical examination under anesthesia revealed the presence of an abdomino-pelvic mass. Laparotomy confirmed the diagnosis of torsion of an ectopic spleen. Splenectomy was required because the spleen was gangrenous. A review of the literature from 1896 to 1990 revealed reports of 74 cases. Epidemiology, etiology, pathophysiology, the diagnostic and therapeutic problems are discussed.
Ektopische Milz beim Kind: Fallbericht und Literaturübersicht 1896–1990
Zusammenfassung Anhand eines Fallberichtes und einer Literaturübersicht über 74 Fälle werden Epidemiologie, Ätiologie, Pathophysiologie, Diagnostik und Therapie der im Kindesalter sehr seltenen ektopen Milz besprochen. Die klinischen Zeichen reichen von unspezifischen abdominellen Beschwerden bis hin zum Vollbild eines akuten Abdomen (50%). Die praeoperative Diagnostik richtet sich nach Klinik, Abdomenleeraufnahme und Sonographie, evtl. Computertomographie. Aufgrund der hohen Torsionsraten besteht generell eine Operationsindikation, wobei die Entscheidung über Splenopexie oder Splenektomie sich an dem Lokalbefund orientieren sollte. Zur Splenopexie wurden mehrere Techniken mit gleich guten Resultaten angegeben.相似文献
120.
A study was carried out in order to document any abnormalities in the electro-encephalogram (EEG) that might appear in young adolescents who have deliberately inhaled the range of volatile substances loosely referred to as 'glue'. The EEGs of a group of 'street children' being assisted in a Johannesburg shelter were examined. The records were analysed for any clinical abnormalities and also subjected to spectral analysis in order to examine the overall characteristics of frequency, power and spatial distribution. The EEGs clearly revealed that, although at the time of the examination the subjects were ostensibly abstinent, both clinical and normative evidence of continuing brain disturbance was present. It was concluded that glue sniffing is likely to have long term electrocerebral sequelae. 相似文献