全文获取类型
收费全文 | 44531篇 |
免费 | 2412篇 |
国内免费 | 161篇 |
专业分类
耳鼻咽喉 | 624篇 |
儿科学 | 2889篇 |
妇产科学 | 774篇 |
基础医学 | 5146篇 |
口腔科学 | 1261篇 |
临床医学 | 3289篇 |
内科学 | 8124篇 |
皮肤病学 | 1201篇 |
神经病学 | 2555篇 |
特种医学 | 1289篇 |
外科学 | 6923篇 |
综合类 | 1391篇 |
一般理论 | 17篇 |
预防医学 | 2222篇 |
眼科学 | 1551篇 |
药学 | 4422篇 |
1篇 | |
中国医学 | 380篇 |
肿瘤学 | 3045篇 |
出版年
2023年 | 377篇 |
2022年 | 1074篇 |
2021年 | 1815篇 |
2020年 | 978篇 |
2019年 | 1110篇 |
2018年 | 1599篇 |
2017年 | 1172篇 |
2016年 | 1518篇 |
2015年 | 1511篇 |
2014年 | 2208篇 |
2013年 | 2534篇 |
2012年 | 3522篇 |
2011年 | 3478篇 |
2010年 | 2074篇 |
2009年 | 1605篇 |
2008年 | 2281篇 |
2007年 | 2317篇 |
2006年 | 2122篇 |
2005年 | 1861篇 |
2004年 | 1718篇 |
2003年 | 1480篇 |
2002年 | 1233篇 |
2001年 | 832篇 |
2000年 | 759篇 |
1999年 | 632篇 |
1998年 | 291篇 |
1997年 | 231篇 |
1996年 | 230篇 |
1995年 | 196篇 |
1994年 | 166篇 |
1993年 | 137篇 |
1992年 | 368篇 |
1991年 | 364篇 |
1990年 | 382篇 |
1989年 | 354篇 |
1988年 | 318篇 |
1987年 | 264篇 |
1986年 | 254篇 |
1985年 | 253篇 |
1984年 | 182篇 |
1983年 | 131篇 |
1982年 | 70篇 |
1981年 | 78篇 |
1980年 | 73篇 |
1979年 | 129篇 |
1978年 | 91篇 |
1977年 | 93篇 |
1976年 | 71篇 |
1973年 | 67篇 |
1971年 | 62篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
Suraj Kumar Kulkarni Nagaraja Moorthy Rangaraj Ramalingam 《Echocardiography (Mount Kisco, N.Y.)》2019,36(3):598-601
Antiphospholipid antibody syndrome (APLS) is a rare disorder characterized by a hypercoagulable state. Manifestations include arterial or venous thrombosis, recurrent fetal wastage, coronary artery disease, valvular heart disease, dilated cardiomyopathy, pulmonary artery hypertension, and intracardiac thrombus. Most commonly mitral valve is affected followed by aortic and then tricuspid valve. In this report, a rare case of spontaneous aortic thrombosis with tricuspid stenosis uncomplicated by other valve lesions is presented with clinical and echocardiographic studies and computed tomographic images. 相似文献
13.
14.
15.
16.
Rajesh Verma Puneet Kumar Dixit Rakesh Lalla Babita Singh 《Annals of Indian Academy of Neurology》2015,18(2):246-248
Mirror movements are simultaneous, involuntary, identical movements occurring during contralateral voluntary movements. These movements are considered as soft neurologic signs seen uncommonly in clinical practice. The mirror movements are described in various neurological disorders which include parkinsonism, cranio veretebral junction anamolies, and hemiplegic cerebral palsy. These movements are intriguing and can pose significant disability. However, no such observation regarding mirror movements in progressive hemifacial atrophy have been reported previously. We are reporting a teenage girl suffering from progressive hemifacial atrophy and epilepsy with demonstrable mirror movements in hand. 相似文献
17.
18.
Khem Pal Singh Anil Kumar Joshi Mohit Kumar Joshi Chitra Joshi Mridu Singh Vikram Singh 《世界急诊医学杂志(英文)》2015,6(4):305-307
BACKGROUND: Penetrating injuries of the perineum are rare but very dangerous. Since the genitourinary and colorectal organs may be injured, how to evaluate surgical management of the injury is very important.METHODS: The present report presents a case of penetrating injury of the perineum by a wooden stick when the patient fell on the upright wooden stick from a tree. The three feet long stick entered the perineal region just left lateral to the anal opening. Upon reaching the thoracic cavity, it broke and only a foot stick was left in the subcutaneous plane. These injuries are potentially serious with risk of damage to multiple organs. Exploratory laprotomy was done, and bladder injury was repaired. The entry wound and the track of stick was thoroughly washed and allowed for secondary intention healing.RESULTS: The post operative period was uneventful and the patient recovered fully.CONCLUSION: Meticulous evaluation and surgical management of perineal injuries are the key to prevent devastating complications. 相似文献
19.
20.