全文获取类型
收费全文 | 2375篇 |
免费 | 256篇 |
国内免费 | 18篇 |
专业分类
耳鼻咽喉 | 30篇 |
儿科学 | 63篇 |
妇产科学 | 42篇 |
基础医学 | 303篇 |
口腔科学 | 46篇 |
临床医学 | 312篇 |
内科学 | 523篇 |
皮肤病学 | 18篇 |
神经病学 | 120篇 |
特种医学 | 97篇 |
外科学 | 281篇 |
综合类 | 49篇 |
预防医学 | 244篇 |
眼科学 | 60篇 |
药学 | 189篇 |
中国医学 | 7篇 |
肿瘤学 | 265篇 |
出版年
2023年 | 21篇 |
2022年 | 38篇 |
2021年 | 76篇 |
2020年 | 42篇 |
2019年 | 54篇 |
2018年 | 90篇 |
2017年 | 54篇 |
2016年 | 49篇 |
2015年 | 74篇 |
2014年 | 91篇 |
2013年 | 116篇 |
2012年 | 150篇 |
2011年 | 156篇 |
2010年 | 103篇 |
2009年 | 99篇 |
2008年 | 127篇 |
2007年 | 142篇 |
2006年 | 101篇 |
2005年 | 110篇 |
2004年 | 124篇 |
2003年 | 123篇 |
2002年 | 96篇 |
2001年 | 59篇 |
2000年 | 67篇 |
1999年 | 47篇 |
1998年 | 32篇 |
1997年 | 30篇 |
1996年 | 13篇 |
1995年 | 18篇 |
1994年 | 13篇 |
1993年 | 23篇 |
1992年 | 35篇 |
1991年 | 37篇 |
1990年 | 25篇 |
1989年 | 34篇 |
1988年 | 18篇 |
1987年 | 23篇 |
1986年 | 19篇 |
1985年 | 10篇 |
1984年 | 14篇 |
1983年 | 10篇 |
1982年 | 8篇 |
1981年 | 11篇 |
1979年 | 8篇 |
1978年 | 6篇 |
1977年 | 14篇 |
1976年 | 7篇 |
1972年 | 5篇 |
1971年 | 6篇 |
1970年 | 5篇 |
排序方式: 共有2649条查询结果,搜索用时 0 毫秒
71.
Collaborate across silos: Perceived barriers to integration of care for the elderly from the perspectives of service providers
下载免费PDF全文
![点击此处可从《The International journal of health planning and management》网站下载免费的PDF全文](/ch/ext_images/free.gif)
72.
73.
74.
75.
76.
Anthony Minh Tien Chau Lileane Liang Xu Johnny Ho-Yin Wong Ralph Jasper Mobbs 《Neurosurgical review》2014,37(1):23-37
Anterior cervical discectomy and fusion (ACDF) and anterior lumbar interbody fusion (ALIF) are common surgical procedures for degenerative disc disease of the cervical and lumbar spine. Over the years, many bone graft options have been developed and investigated aimed at complimenting or substituting autograft bone, the traditional fusion substrate. Here, we summarise the historical context, biological basis and current best evidence for these bone graft options in ACDF and ALIF. 相似文献
77.
Ava Kwong BSc MBBS PhD FRCS Wai Wang Chau BSc MSc Oscar W. K. Mang MSc CStat Connie H. N. Wong MSc BSc Dacita T. K. Suen MBBS R. Leung MBCHB MRCP Kerry Wong BSc MBiostats Andrea Lee Catherine Shea MBBS Elliot Morse Stephen C. K. Law MBBS FRCR 《Annals of surgical oncology》2014,21(4):1246-1253
Background
Male breast cancer (MBC) is uncommon. As a result, there is limited availability of studies and reviews and even fewer reports from Asia. This is the largest population-based study to compare Chinese MBC patients with female patients during a 10-year period in Hong Kong, Southern China.Methods
A retrospective review of medical records of 132 male and 8,118 female breast cancer patients between year 1997 and 2006 in Hong Kong was performed. Each MBC patient was matched with three female breast cancer patients for further analysis. Different characteristics, overall, breast-cancer specific, and disease-free survivals (DFS) were compared.Results
Mean age at diagnosis of male and female patients was 64.5 and 52.7 years respectively. Male patients showed lower histological grade, overall stage, smaller tumor size, and more positive sensitivity in hormone receptors. They were more likely to die of causes other than breast cancer. Matched analysis found that the 5-year overall survival (OS), breast-cancer–specific mortality, and DFS for male and female patients were 78.7, 90.5, 90.5, and 77.9, 86.4, and 81.4 % respectively. Male patients had poorer OS at early overall stage but better breast-cancer—specific mortality rates at any age (p < 0.01). Male patients had a significant risk of dying due to any cause in the presence of distant relapse and had less risk of dying when tumor was ER-positive and HER2-positive.Conclusions
Chinese male breast cancer patients tend to have poorer OS but better breast-cancer—specific survival compared with their female counterparts. 相似文献78.
Nathalie De Castro Olivier Marcy Corine Chazallon Eugène Messou Serge Eholié Jean-Baptiste N'takpe Nilesh Bhatt Celso Khosa Isabel Timana Massango Didier Laureillard Giang Do Chau Anaïs Domergue Valdilea Veloso Rodrigo Escada Sandra Wagner Cardoso Constance Delaugerre Xavier Anglaret Jean-Michel Molina 《The Lancet infectious diseases》2021,21(6):813-822
79.
Chen CC Lee KD Gau JP Yu YB You JY Lee SC Hsu HC Chau WK Ho CH 《Annals of hematology》2005,84(10):675-680
Thrombin-activatable fibrinolysis inhibitor (TAFI) is a carboxypeptidase that downregulates fibrinolysis and might play some roles in the pathogenesis of disseminated intravascular coagulation (DIC). We prospectively examined the plasma TAFI antigen levels in patients highly suspected to be suffering from DIC. Patients were subdivided into overt DIC and non-DIC groups according to a DIC scoring system. The Sepsis-related Organ Failure Assessment (SOFA) scores were concurrently calculated on patients with sepsis. Overall, there were 23 non-DIC patients and 20 patients with overt DIC. Their baseline characteristics were similar, but patients with overt DIC had much more aberrant coagulation tests and higher lactate dehydrogenase levels. However, there was no significant difference between overt DIC and non-DIC patients regarding their TAFI antigen levels [median/interquartile range (IQR) 74.41/13.98 and 75.29/15.16, respectively, p=0.543]. On regression analysis, TAFI antigen levels were not correlated with either C-reactive protein levels or various coagulation test results. In patients with sepsis (n=31), TAFI levels among three risk groups stratified by low (5), intermediate (6–10), and high (11) SOFA scores were not statistically disparate (median/IQR 65.24/15.14, 74.63/13.79, and 75.29/21.51, respectively, p=0.684), either. Our result indicated that plasma TAFI antigen levels did not vary significantly between patients with or without DIC. Further, they did not possess any correlation with the severity of organ injury in patients with sepsis. The role of TAFI antigen in the pathogenesis of DIC needs further elucidation by future studies. 相似文献
80.
S Y So P Y Chau B M Jones P C Wu K K Pun W K Lam J W Lawton 《The American review of respiratory disease》1985,131(4):662-665
A 53-yr-old Chinese sailor developed prolonged pyrexia with unresolved lobar pneumonia, cervical lymphadenopathy, generalized subcutaneous abscesses, and pericardial effusion. Penicillium marneffei was isolated from pericardial fluid and subcutaneous pus and was demonstrated on histologic sections of lymph nodes and lung tissue. The penicilliosis was treated successfully with amphotericin B, ketoconazole, and 5-fluorocytosine. Subsequently, he also developed other T-lymphocyte-related opportunistic infections such as disseminated cutaneous herpes zoster and chronic osteomyelitis of sternum caused by Salmonella typhimurium. He was also a chronic carrier of cytomegalovirus. Further investigations showed that he had persistent depression of T-lymphocyte function and enhancement of B-lymphocyte activity, the cause of which was undetermined. 相似文献