全文获取类型
收费全文 | 2153篇 |
免费 | 141篇 |
国内免费 | 23篇 |
专业分类
耳鼻咽喉 | 25篇 |
儿科学 | 92篇 |
妇产科学 | 95篇 |
基础医学 | 200篇 |
口腔科学 | 69篇 |
临床医学 | 199篇 |
内科学 | 454篇 |
皮肤病学 | 24篇 |
神经病学 | 109篇 |
特种医学 | 105篇 |
外科学 | 391篇 |
综合类 | 75篇 |
预防医学 | 81篇 |
眼科学 | 73篇 |
药学 | 134篇 |
中国医学 | 6篇 |
肿瘤学 | 185篇 |
出版年
2024年 | 2篇 |
2023年 | 9篇 |
2022年 | 16篇 |
2021年 | 38篇 |
2020年 | 26篇 |
2019年 | 42篇 |
2018年 | 51篇 |
2017年 | 36篇 |
2016年 | 41篇 |
2015年 | 58篇 |
2014年 | 59篇 |
2013年 | 95篇 |
2012年 | 109篇 |
2011年 | 143篇 |
2010年 | 111篇 |
2009年 | 96篇 |
2008年 | 123篇 |
2007年 | 104篇 |
2006年 | 116篇 |
2005年 | 127篇 |
2004年 | 139篇 |
2003年 | 103篇 |
2002年 | 82篇 |
2001年 | 60篇 |
2000年 | 63篇 |
1999年 | 49篇 |
1998年 | 38篇 |
1997年 | 34篇 |
1996年 | 36篇 |
1995年 | 39篇 |
1994年 | 37篇 |
1993年 | 16篇 |
1992年 | 27篇 |
1991年 | 24篇 |
1990年 | 28篇 |
1989年 | 35篇 |
1988年 | 19篇 |
1987年 | 14篇 |
1986年 | 11篇 |
1985年 | 8篇 |
1984年 | 10篇 |
1983年 | 9篇 |
1982年 | 3篇 |
1981年 | 6篇 |
1980年 | 7篇 |
1978年 | 7篇 |
1977年 | 5篇 |
1972年 | 3篇 |
1970年 | 1篇 |
1962年 | 1篇 |
排序方式: 共有2317条查询结果,搜索用时 10 毫秒
1.
2.
3.
4.
5.
The first 150 words of the full text of this article appear below. Key points Coronary artery disease accounts for >30% ofdeaths in Western society. The diagnosis of myocardial infarctionshould be qualified by size, causation and time from occurrence. Mortalityis reduced by immediate or primary percutaneouscoronary intervention or thrombolysis within the first 24 hof onset of ST-segment elevation myocardial infarction. Strategiesto reduce platelet activation (glycoprotein IIb/IIIa receptorantagonists, or clopidogrel) are now recommended in the treatmentof high-risk non-ST-segment myocardial infarction/unstable angina. Elevatedserum troponins may be the result of non-ischaemic myocardialdamage, especially in critical illness.
Pathophysiology
Changes in the definition of terms relating to the diagnosisof myocardial infarction (MI) have evolved by better understandingof the pathophysiology culminating in the new term of acutecoronary syndrome (ACS). Figure 1 illustrates the processesthat occur in the development of an acute coronary event. 相似文献
6.
Paralytic toxicity was detected by tetrodotoxin (TTX) bioassay in all 15 specimens of the xanthid crab Lophozozymus pictor collected from northern Taiwan in 1993. The average toxicity of crab specimens was 921 ± 231 (mean ± S.E.) mouse units. The toxin of crab was partially purified and then identified. It was found that the crab toxin contained TTX and gonyautoxin. The ratio of TTX to gonyautoxin for crab toxin was about 9:1. 相似文献
7.
8.
Reoperative Thyroid Surgery 总被引:4,自引:0,他引:4
Reoperative thyroid surgery is an uncommon operation associated with a high complication rate. We retrospectively reviewed the data of 115 patients to study the incidence of complications after reoperative thyroid surgery. There were 107 women and 8 men (13.4:1.0) with an average age of 42.8 years (range 18–80 years). The most frequent indication for reoperation was completion thyroidectomy for a carcinoma identified by permanent sections (50 patients, 43.5%). Reoperative surgery was performed on 13 (11.3%) patients with recurrent thyroid cancer. The remaining 52 patients underwent reoperation for recurrent thyrotoxicosis (12 patients, 10.4%), recurrent nodular goiter (28 patients, 24.3%) or recurrent multinodular goiter (12 patients, 10.4%). Seven patients with recurrent nodular goiter and one patient with recurrent thyrotoxicosis underwent total thyroidectomy for the presence of malignancies that were identified by frozen sections. Overall, the interval between the initial and reoperative procedures ranged from 1 day to 33 years (2335 ± 272 days). The length of hospital stay was 5.8 ± 0.5 days. The length of time needed for reoperative thyroid surgery was 122.0 ± 6.2 minutes. There was no 30-day perioperative mortality. The postoperative complications consisted of transient hypoparathyroidism in six patients (5.2%), permanent hypoparathyroidism in two patients (1.7%), transient RLN palsy in 3 patients (2.6%), and permanent recurrent laryngeal nerve palsy in two patients (1.7%). Reoperative thyroid surgery can be performed safely with little morbidity to the patient. 相似文献
9.
M M Fuh C M Lee C Y Jeng D C Shen S M Shieh G M Reaven Y D Chen 《Kidney international》1990,37(5):1295-1300
Plasma lipid and lipoprotein concentration and high density lipoprotein (HDL) kinetics were determined in control subjects and patients with chronic renal failure (CRF). Results demonstrated that plasma triglyceride (TG) concentration was significantly higher (P less than 0.001) in patients with CRF, associated with a significant increase in plasma VLDL-cholesterol (P less than 0.002) and a significant decrease (P less than 0.05) in plasma HDL-cholesterol concentration. The rate of removal of 125I-apoAI/HDL from plasma was slower (P less than 0.001) in the patients with CRF, resulting in an increase in the residence time of 125I-apoAI/HDL (P less than 0.001) and a decrease in the fractional catabolic rate (P less than 0.001). Since plasma apoAI concentration was lower in patients with CRF, total apoAI/HDL synthetic rate was also significantly (P less than 0.05) decreased. These data provide support for the view that low plasma HDL-cholesterol concentrations in patients with CRF are related to decreases in the synthetic rate of apoAI/HDL. 相似文献
10.
Three rare cases of upper eyelid trauma are presented. In high-speed traffic accidents, the upper eyelids were penetrated by glass, avulsed, and then, together with pieces of glass, pushed over the globe and buried deeply in the retrobulbar area. The invaginated eyelids were pulled out gently, the conjunctiva still attached to the globes. They were repaired primarily. In these patients eyelid function and cosmesis were preserved. 相似文献