全文获取类型
收费全文 | 175313篇 |
免费 | 972篇 |
国内免费 | 8篇 |
专业分类
耳鼻咽喉 | 1128篇 |
儿科学 | 6633篇 |
妇产科学 | 3014篇 |
基础医学 | 16528篇 |
口腔科学 | 1556篇 |
临床医学 | 12311篇 |
内科学 | 30682篇 |
皮肤病学 | 686篇 |
神经病学 | 16376篇 |
特种医学 | 8918篇 |
外科学 | 28723篇 |
综合类 | 2369篇 |
预防医学 | 18111篇 |
眼科学 | 2732篇 |
药学 | 9520篇 |
中国医学 | 645篇 |
肿瘤学 | 16361篇 |
出版年
2019年 | 22篇 |
2018年 | 21926篇 |
2017年 | 17365篇 |
2016年 | 19512篇 |
2015年 | 890篇 |
2014年 | 788篇 |
2013年 | 755篇 |
2012年 | 6934篇 |
2011年 | 20973篇 |
2010年 | 18821篇 |
2009年 | 11509篇 |
2008年 | 19471篇 |
2007年 | 21666篇 |
2006年 | 504篇 |
2005年 | 2138篇 |
2004年 | 3353篇 |
2003年 | 4313篇 |
2002年 | 2452篇 |
2001年 | 282篇 |
2000年 | 423篇 |
1999年 | 183篇 |
1998年 | 197篇 |
1997年 | 198篇 |
1996年 | 92篇 |
1995年 | 105篇 |
1994年 | 97篇 |
1993年 | 61篇 |
1992年 | 53篇 |
1991年 | 95篇 |
1990年 | 133篇 |
1989年 | 95篇 |
1988年 | 72篇 |
1987年 | 54篇 |
1986年 | 44篇 |
1985年 | 38篇 |
1984年 | 36篇 |
1983年 | 33篇 |
1982年 | 29篇 |
1980年 | 49篇 |
1974年 | 23篇 |
1970年 | 22篇 |
1969年 | 22篇 |
1968年 | 20篇 |
1939年 | 20篇 |
1938年 | 60篇 |
1937年 | 25篇 |
1935年 | 22篇 |
1934年 | 30篇 |
1932年 | 56篇 |
1930年 | 46篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
993.
994.
995.
The use of shoulder braces has become more important recently. Although the effectiveness and actual need of different shoulder braces have not yet undergone an evidence-based evaluation, empirical data shows differentiated use of shoulder braces not only in postoperative care but also for non-surgical treatment. For this, not only biological factors (lengths of immobilisation and tissue healing), but also biomechanical factors (pathology-adapted immobilisation) need to be considered.Apart from simple slings, physicians can choose between two different types of braces: soft shoulder braces and rigid shoulder braces. Future studies should evaluate commercially available shoulder braces on their functionality and comfort as well as for potential problems related to different pathologies of the shoulder joint and its clinical outcome. 相似文献
996.
Dale S. DiSalvo Benjamin S. Oberman Joshua I. Warrick David Goldenberg 《Head and neck pathology》2016,10(2):188-191
Focal dermal hypoplasia (Goltz syndrome; GS) is an X-linked dominant disorder caused by a mutation in the porcupine homolog (PORCN) gene and is typically embryonically lethal for males. The presence of disease in males is usually the result of post-zygotic mutation, but may also be due to mosaicism. The presentation of this disorder is highly variable, but generally is characterized by cutaneous, skeletal, ocular, oral, dental, and aural defects. Cutaneous manifestations include foci of hypoplastic skin, abnormal pigmentation, and papillomatous growths. We present both the first case of a patient with GS related laryngeal obstruction due to papillary lymphoid hyperplasia in an adult, and the first case in a male patient. Clinical, histologic, and genetic features of the disease are discussed. Operative technique for management of the patient with pharyngeal lesions is detailed, and intraoperative photos are showcased. The challenge in airway evaluation and management is also highlighted as manifestations of GS are rarely encountered in the airway and can cause laryngeal obstruction. 相似文献
997.
Duckhee Chae Hyunlye Kim Young A. Kim 《International journal of mental health and addiction》2018,16(2):339-350
This study explored the psychosocial differences in the addictive tendency toward social networking sites (SNSs) between male and female Korean college students. A convenience sample of 253 college students, 90 males and 163 females, from two universities in G City, South Korea, was recruited between October 17 and November 12, 2015. Data were analyzed using the Mann-Whitney test, analysis of variance, Pearson’s correlation, and simultaneous quantile regression. Female students showed a significantly higher tendency for SNS addiction than males did. Age and social support had significant effects on the tendency for SNS addiction in males; daily frequency of logging in to SNSs, subjective happiness, and depression had significant effects on the same in female respondents who fell above the 50th percentile on SNS addiction. Our data provide evidence of a heterogeneous effect of SNS addictive tendency determinants among college students, which is considered to be due to the interpersonal orientation of women and their vulnerability to depression. 相似文献
998.
Joshua Breslau Emily Leckman-Westin Hao Yu Bing Han Riti Pritam Diana Guarasi Marcela Horvitz-Lennon Deborah M. Scharf Harold A. Pincus Molly T. Finnerty 《Administration and policy in mental health》2018,45(2):276-285
We examine the impact of mental health based primary care on physical health treatment among community mental health center patients in New York State using propensity score adjusted difference in difference models. Outcomes are quality indicators related to outpatient medical visits, diabetes HbA1c monitoring, and metabolic monitoring of antipsychotic treatment. Results suggest the program improved metabolic monitoring for patients on antipsychotics in one of two waves, but did not impact other quality indicators. Ceiling effects may have limited program impacts. More structured clinical programs to may be required to achieve improvements in quality of physical health care for this population. 相似文献
999.
1000.