全文获取类型
收费全文 | 302130篇 |
免费 | 17739篇 |
国内免费 | 489篇 |
专业分类
耳鼻咽喉 | 4289篇 |
儿科学 | 10447篇 |
妇产科学 | 10421篇 |
基础医学 | 45659篇 |
口腔科学 | 7565篇 |
临床医学 | 24765篇 |
内科学 | 57065篇 |
皮肤病学 | 6394篇 |
神经病学 | 21628篇 |
特种医学 | 11759篇 |
外国民族医学 | 43篇 |
外科学 | 47561篇 |
综合类 | 7915篇 |
现状与发展 | 1篇 |
一般理论 | 165篇 |
预防医学 | 20577篇 |
眼科学 | 7219篇 |
药学 | 21310篇 |
中国医学 | 790篇 |
肿瘤学 | 14785篇 |
出版年
2019年 | 2335篇 |
2018年 | 3708篇 |
2017年 | 2743篇 |
2016年 | 3159篇 |
2015年 | 3575篇 |
2014年 | 4712篇 |
2013年 | 7471篇 |
2012年 | 9359篇 |
2011年 | 9819篇 |
2010年 | 6334篇 |
2009年 | 5760篇 |
2008年 | 9034篇 |
2007年 | 9905篇 |
2006年 | 9725篇 |
2005年 | 9369篇 |
2004年 | 9074篇 |
2003年 | 8516篇 |
2002年 | 8096篇 |
2001年 | 13382篇 |
2000年 | 13679篇 |
1999年 | 11468篇 |
1998年 | 3114篇 |
1997年 | 2865篇 |
1996年 | 2713篇 |
1995年 | 2594篇 |
1994年 | 2413篇 |
1992年 | 8344篇 |
1991年 | 8486篇 |
1990年 | 8298篇 |
1989年 | 8105篇 |
1988年 | 7343篇 |
1987年 | 7094篇 |
1986年 | 6753篇 |
1985年 | 6557篇 |
1984年 | 4808篇 |
1983年 | 4167篇 |
1982年 | 2531篇 |
1979年 | 4461篇 |
1978年 | 3270篇 |
1977年 | 2758篇 |
1976年 | 2539篇 |
1975年 | 2854篇 |
1974年 | 3385篇 |
1973年 | 3385篇 |
1972年 | 3134篇 |
1971年 | 2959篇 |
1970年 | 2856篇 |
1969年 | 2599篇 |
1968年 | 2554篇 |
1967年 | 2383篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
982.
Synaptic responses of bulbar neurons to stimulation of stepping points in the dorsolateral funiculus were recorded in decerebrate cats. 40% of neurons were excited from both ipsi- and contralateral stepping points, the rest of them were excited only from one of those points. Part of the neurons was activated from stepping points at both C2 and Th12 spinal cord levels. Latencies of the synaptic responses to stimulation of the stepping point at the cervical level were from 2 to 18 ms. These results suggest that bulbar neurons as well as propriospinal ones contribute to initiation of locomotion. 相似文献
983.
M. G. Voronkov O. P. Kolesnikova M. M. Rasulov A. N. Mirskova 《Pharmaceutical Chemistry Journal》2007,41(5):244-248
The results of an experimental and clinical study on the pharmacological properties of new compounds representing tris-(2-hydroxyethyl)ammonium
salts (TES) of arylheteroacetic acids-in particular, tris-(2-hydroxyethyl)ammonium-2-methylphenoxyacetate (trecrezan)-are
summarized. Trecrezan exhibits a modulating action on immunity and hemopoiesis and offers a promising approach to immune correction
for the treatment of immune deficiency and autoimmune disorders. Recovery of the proliferative activity of the early precursors
of erythropoiesis with the aid of trecrezan (experimental model) leads to the normalization of immunity and hemopoiesis. A
method involving trecrezan administration has been developed for the complex treatment of acute viral hepatitis B as well
as hepatitis A and B complicated by occupational anamnesis. Trecrezan has also been successfully applied for the complex treatment
of ischemic heart disease and multiple sclerosis. Trecrezan stimulates the regeneration of hepatocytes during partial hepatectomy
and acts as an effective adjuvant in the complex therapy of tuberculosis. Trecrezan analogs (TES) show antitumor, hepatoprotective,
and adaptive activity, increase the resistance of animals to oxygen insufficiency and to poisoning with heavy metal salts
and organophosphorus compounds, and improve the endurance of animals under physical load and emotional stress conditions.
__________
Translated from Khimiko-Farmatsevticheskii Zhurnal, Vol. 41, No. 5, pp. 13–17, May, 2007. 相似文献
984.
985.
T V Shipilova O I Volozh F S Solodkaya J C Tagger V M Pauts A M Olferiev 《Cor et vasa》1987,29(5):333-340
The informative value of various lipid indicators and indexes in healthy subjects and in patients with ischaemic heart disease (IHD) is compared. In 10 investigated biochemical indicators significant differences were found between healthy people and subjects with epidemiological or clinical signs of IHD. The first places in the order according to Anderson-Bahadur intervals were held by the cholesterol atherogenity index, total cholesterol (CS) and the percent of high-density lipoproteins cholesterol (HDL-CS) in total CS. The cholesterol atherogenity index and HDL-CS percent in total CS were closely correlated with the severity of angiographically proved changes in the coronary arteries. 相似文献
986.
987.
988.
989.
S Tadera N Oka M Sako M Sugino G Hamami O Matsumoto S Kamidono 《Hinyokika kiyo. Acta urologica Japonica》1986,32(3):462-467
A case of a 19-year-old male with leiomyosarcoma of the prostate is reported. He visited our hospital with the chief complaint of urinary retention in December, 1983. Following overall examination, needle biopsy of the prostate gland was performed with the suspicion of sarcoma. Histology of the prostate revealed leiomyosarcoma. Two courses of combined chemotherapy were given, but the tumor continued to enlarge. The patient died in April, 1984, 5 months after the appearance of the first symptom. 相似文献
990.
S. E. Milkina O. B. Stepanenko L. N. Grushevskaya N. I. Avdyunina B. M. Pyatin V. L. Bagirova E. B. Nechaeva 《Pharmaceutical Chemistry Journal》2006,40(7):405-406
The physicochemical properties of the new anxiolytic drug afobazole, which belongs to the group of 2-mercaptobenzimidazole
derivatives, have been studied with a view to its pharmacopoeial standardization. It is suggested to check afobazole for the
presence of impurities by means of TLC and HPLC. Methods for the standardization of afobazole are developed and a project
for the pharmacopoeial article of manufacturer for this drug is formulated.
__________
Translated from Khimiko-Farmatsevticheskii Zhurnal, Vol. 40, No. 7, pp. 55–56, July, 2006. 相似文献