全文获取类型
收费全文 | 3753篇 |
免费 | 193篇 |
国内免费 | 23篇 |
专业分类
耳鼻咽喉 | 140篇 |
儿科学 | 89篇 |
妇产科学 | 36篇 |
基础医学 | 468篇 |
口腔科学 | 88篇 |
临床医学 | 217篇 |
内科学 | 982篇 |
皮肤病学 | 57篇 |
神经病学 | 413篇 |
特种医学 | 80篇 |
外科学 | 655篇 |
综合类 | 14篇 |
预防医学 | 102篇 |
眼科学 | 58篇 |
药学 | 263篇 |
中国医学 | 9篇 |
肿瘤学 | 298篇 |
出版年
2022年 | 49篇 |
2021年 | 71篇 |
2020年 | 37篇 |
2019年 | 55篇 |
2018年 | 59篇 |
2017年 | 48篇 |
2016年 | 41篇 |
2015年 | 51篇 |
2014年 | 78篇 |
2013年 | 86篇 |
2012年 | 160篇 |
2011年 | 176篇 |
2010年 | 101篇 |
2009年 | 96篇 |
2008年 | 169篇 |
2007年 | 177篇 |
2006年 | 166篇 |
2005年 | 154篇 |
2004年 | 167篇 |
2003年 | 173篇 |
2002年 | 142篇 |
2001年 | 145篇 |
2000年 | 168篇 |
1999年 | 148篇 |
1998年 | 48篇 |
1997年 | 39篇 |
1996年 | 46篇 |
1995年 | 33篇 |
1994年 | 30篇 |
1993年 | 30篇 |
1992年 | 105篇 |
1991年 | 74篇 |
1990年 | 85篇 |
1989年 | 108篇 |
1988年 | 87篇 |
1987年 | 73篇 |
1986年 | 67篇 |
1985年 | 60篇 |
1984年 | 42篇 |
1983年 | 30篇 |
1982年 | 20篇 |
1980年 | 19篇 |
1979年 | 37篇 |
1978年 | 20篇 |
1977年 | 27篇 |
1976年 | 14篇 |
1975年 | 15篇 |
1974年 | 16篇 |
1968年 | 14篇 |
1966年 | 14篇 |
排序方式: 共有3969条查询结果,搜索用时 15 毫秒
1.
IgG-maleimide peroxidase, Fab'-maleimide peroxidase, polymer and monomer types of Fab'-periodate peroxidase were prepared from an antibody against rat lipoamide dehydrogenase, a component of the pyruvate dehydrogenase complex which is located in mitochondria. They were examined for immunohistochemical staining of the rat kidney. Fab'-maleimide peroxidase was the best for staining mitochondrial protein. IgG-maleimide peroxidase and the monomer type of Fab'-periodate peroxidase had the same intensity of staining. The polymer type of Fab'-periodate peroxidase could not stain the lipoamide dehydrogenase. 相似文献
2.
3.
4.
M Noguchi T Taniya K Ueno M Yagi R Izumi K Konishi I Miyazaki 《The Japanese journal of surgery》1990,20(4):448-452
We report herein a rare case of a 26 year old woman with pheochromocytoma complicated by paralytic ileus. She presented with remarkable abdominal distension and respiratory difficulty but was effectively treated by surgical removal of the tumor with preoperative and operative management using alpha and beta adrenergic blocking agents. An excessive and persistent catecholamine production from large tumors or massive metastases characterizes this rare complication, and a review of the English and Japanese literature is given following this report. 相似文献
5.
6.
K Imura A Okada Y Fukui H Kawahara M Yagi A Kubota S Kanaya S Kamata Y Nagata 《JPEN. Journal of parenteral and enteral nutrition》1988,12(5):496-504
In 97 neonates receiving total parenteral nutrition in the postoperative period, clinical assessment was made for a newly devised amino acid solution (PF-I-III) from the standpoint of plasma amino acid profile and nutritional effect. These amino acid solutions prepared are characterized by the high concentration of branched-chain amino acids up to 40%, increased arginine and decreased glycine, phenylalanine and methionine as compared with commercially available solutions. In the PF group, each amino acid was kept within the range of standard value. Correlation between plasma amino acid profiles and the dose of each amino acid administered was obtained, from which minimum, standard, and maximum doses for each amino acid was determined. Based on these values, we proposed new formula for neonates which elicits no abnormal plasma amino acid pattern even when amino acids are administered at the dosage level of 1.5-2.5 g/kg/day. 相似文献
7.
S Kanba E Suzuki S Nomura T Nakaki G Yagi M Asai E Richelson 《Journal of psychiatry & neuroscience : JPN》1994,19(4):265-269
We determined the inhibition-dissociation constant (Ki) of a number of neuroleptics for D1 receptors of normal human brain tissue using [3H]SCH23390 [R-(+)-8-chloro-2,3,4,5-tetrahydro-3-methyl-5-phenyl-1H-3[benzazepine-7- ol]. SCH23390 had the highest affinity with a Ki of 0.76 nM. Among clinically used drugs, propericiazine showed the highest affinity with a Ki of 10 nM. When neuroleptics were classified according to chemical structures, the Ki values were as follows. Phenothiazines ranged from 10 nM to 250 nM. Butyrophenones ranged from 45 nM to 250 nM. Thioxanthenes ranged from 12 nM to 340 nM. Orthopramines were more than 10,000 nM. The Ki values for the binding site of this study were significantly correlated with those reported in studies using animal brain. The possible relationship between D1 receptors and negative symptoms is discussed. 相似文献
8.
Kazuaki Fukahara Kazutomo Minami Bert Hansky Sebastian A Schulte-Eistrup Gero Tenderich Uwe Schulz Reiner Koerfer 《The Journal of heart and lung transplantation》2003,22(4):468-473
The association is well established between congenital heart disease and spinal deformities such as scoliosis or kyphosis, but data are not available for risks and the outcome of heart surgery in patients with spinal deformities. We report a case of successful orthotopic heart lung transplantation in a patient with complex congenital heart disease and severe chest deformity who had undergone previous spinal fusion surgery for progressive right convex thoracic kyphoscoliosis. 相似文献
9.
10.
Minoru Yagi Takeshi Mishina Tsukasa Fujishima Kazutoshi Date Hiroshi Saito Nobuo Suzuki 《Surgery today》1997,27(1):84-87
The acute onset of peritoneal signs and shock in a 7year-old boy who had been hit in the epigastrium by a log-seesaw mandated surgical treatment. Enhanced computed tomography (CT) demonstrated complete laceration of the pancreas as well as duodenal injury, and a duodenoduodenostomy with distal pancreaticogastrostomy was subsequently performed. Temporary external drainage of the stomach and distal pancreas led to an uneventful recovery in the early postoperative period. Although the patient's postoperative development was appropriate for his age, the orifice of the distal pancreas spontaneously closed 2.5 years following surgery. We present this report to stress the fact that every effort should be made to preserve the pancreas following abdominal injury in children. 相似文献