全文获取类型
收费全文 | 1608篇 |
免费 | 155篇 |
国内免费 | 38篇 |
专业分类
耳鼻咽喉 | 12篇 |
儿科学 | 42篇 |
妇产科学 | 29篇 |
基础医学 | 248篇 |
口腔科学 | 25篇 |
临床医学 | 256篇 |
内科学 | 320篇 |
皮肤病学 | 27篇 |
神经病学 | 199篇 |
特种医学 | 123篇 |
外科学 | 149篇 |
综合类 | 51篇 |
一般理论 | 6篇 |
预防医学 | 153篇 |
眼科学 | 12篇 |
药学 | 98篇 |
中国医学 | 2篇 |
肿瘤学 | 49篇 |
出版年
2023年 | 16篇 |
2021年 | 29篇 |
2020年 | 21篇 |
2019年 | 22篇 |
2018年 | 22篇 |
2017年 | 21篇 |
2016年 | 24篇 |
2015年 | 40篇 |
2014年 | 41篇 |
2013年 | 45篇 |
2012年 | 42篇 |
2011年 | 64篇 |
2010年 | 39篇 |
2009年 | 29篇 |
2008年 | 58篇 |
2007年 | 77篇 |
2006年 | 58篇 |
2005年 | 71篇 |
2004年 | 46篇 |
2003年 | 52篇 |
2002年 | 48篇 |
2001年 | 49篇 |
2000年 | 44篇 |
1999年 | 40篇 |
1998年 | 33篇 |
1997年 | 32篇 |
1996年 | 41篇 |
1995年 | 31篇 |
1994年 | 21篇 |
1993年 | 34篇 |
1992年 | 26篇 |
1991年 | 50篇 |
1990年 | 33篇 |
1989年 | 29篇 |
1988年 | 38篇 |
1987年 | 37篇 |
1986年 | 22篇 |
1985年 | 29篇 |
1984年 | 28篇 |
1983年 | 19篇 |
1982年 | 20篇 |
1981年 | 23篇 |
1980年 | 23篇 |
1979年 | 19篇 |
1978年 | 18篇 |
1977年 | 13篇 |
1975年 | 14篇 |
1974年 | 14篇 |
1972年 | 10篇 |
1968年 | 10篇 |
排序方式: 共有1801条查询结果,搜索用时 15 毫秒
71.
72.
O'Driscoll SW Spinner RJ McKee MD Kibler WB Hastings H Morrey BF Kato H Takayama S Imatani J Toh S Graham HK 《The Journal of bone and joint surgery. American volume》2001,(9):1358-1369
BACKGROUND: Cubitus varus has long been considered merely a cosmetic deformity. The purpose of this paper is to demonstrate a causal relationship between cubitus varus and instability of the elbow. METHODS: In twenty-four patients (twenty-five limbs) with a cubitus varus deformity following a pediatric distal humeral fracture or resulting from a congenital anomaly (three limbs of two patients), tardy posterolateral rotatory instability of the elbow developed approximately two to three decades after the deformity occurred. All patients presented with lateral elbow pain and recurrent instability. The average varus deformity was 15 degrees (range, 0 degrees to 35 degrees ). Surgery was performed in twenty-one patients (twenty-two limbs). Treatment consisted of reconstruction of the lateral collateral ligament and osteotomy in seven limbs, ligament reconstruction alone in ten, osteotomy alone in four, and total elbow arthroplasty in one. RESULTS: In three patients, the triceps muscle was dynamically stimulated intraoperatively to contract while resisting extension of the elbow. This produced posterolateral rotatory subluxation of the elbow, which was reversed by corrective osteotomy and lateral transposition of a portion of the medial head of the triceps that originally had been attached to the elongated, deformed medial aspect of the olecranon. At an average of three years (minimum, one year) after the operation, the result was good or excellent for nineteen of the twenty-two limbs that had undergone an operation; three limbs had persistent instability. CONCLUSIONS: With cubitus varus, the mechanical axis, the olecranon, and the triceps line of pull are all displaced medially. The repetitive external rotation torque on the ulna permitted by these deformities can stretch the lateral collateral ligament complex and lead to posterolateral rotatory instability. Thus, cubitus varus deformity secondary to supracondylar malunion or congenital deformity of the distal part of the humerus may not always be a benign condition and may have important long-term clinical implications. Operative correction can relieve symptoms of instability. The indications for preventive corrective osteotomy remain to be determined. 相似文献
73.
Templeton AW; Johnson JA; Anderson WH; Cook LT; Dwyer SJ d; Preston DF; Lee KR; Rosenthal SJ; Batnitzky S; Levine E 《Radiology》1984,151(2):527-528
The increasing use of digitally formatted imaging systems requires high-quality interactive gray-scale computer raster graphics systems for the management, display, and analog film recording of digital image and alphanumeric information. These systems are a combination of computer hardware and software and implement a set of graphics protocols. This paper describes a set of interactive graphics protocols that has been developed for clinical use. 相似文献
74.
75.
76.
77.
78.
79.
80.