全文获取类型
收费全文 | 1418篇 |
免费 | 98篇 |
国内免费 | 1篇 |
专业分类
耳鼻咽喉 | 15篇 |
儿科学 | 125篇 |
妇产科学 | 36篇 |
基础医学 | 116篇 |
口腔科学 | 15篇 |
临床医学 | 101篇 |
内科学 | 273篇 |
皮肤病学 | 41篇 |
神经病学 | 107篇 |
特种医学 | 33篇 |
外科学 | 307篇 |
综合类 | 19篇 |
预防医学 | 59篇 |
眼科学 | 55篇 |
药学 | 126篇 |
中国医学 | 2篇 |
肿瘤学 | 87篇 |
出版年
2023年 | 12篇 |
2022年 | 30篇 |
2021年 | 62篇 |
2020年 | 37篇 |
2019年 | 51篇 |
2018年 | 67篇 |
2017年 | 42篇 |
2016年 | 40篇 |
2015年 | 42篇 |
2014年 | 70篇 |
2013年 | 87篇 |
2012年 | 126篇 |
2011年 | 121篇 |
2010年 | 64篇 |
2009年 | 58篇 |
2008年 | 85篇 |
2007年 | 80篇 |
2006年 | 64篇 |
2005年 | 62篇 |
2004年 | 40篇 |
2003年 | 30篇 |
2002年 | 29篇 |
2001年 | 22篇 |
2000年 | 37篇 |
1999年 | 14篇 |
1998年 | 6篇 |
1997年 | 7篇 |
1996年 | 2篇 |
1995年 | 4篇 |
1994年 | 6篇 |
1993年 | 4篇 |
1992年 | 16篇 |
1991年 | 10篇 |
1990年 | 7篇 |
1989年 | 10篇 |
1988年 | 7篇 |
1987年 | 8篇 |
1986年 | 5篇 |
1985年 | 6篇 |
1984年 | 6篇 |
1983年 | 6篇 |
1982年 | 4篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1974年 | 2篇 |
1973年 | 2篇 |
1971年 | 2篇 |
1968年 | 2篇 |
1967年 | 3篇 |
1924年 | 2篇 |
排序方式: 共有1517条查询结果,搜索用时 15 毫秒
21.
22.
23.
Nisha Marwah Shilpi Modi Veena Gupta Sumiti Gupta Gajender Singh Rajeev Sen 《Indian journal of hematology & blood transfusion》2012,28(1):47-49
We report a case of a newborn male who had mongoloid slant and was hypotonic at birth. Routine investigations revealed leucocytosis
(WBC > 70,000/cmm) with 50% blasts in peripheral blood film. Marrow examination confirmed the excess of blasts. Karyotyping
revealed 47, XY + 21 chromosomes. Due to absence of clinical symptoms, the baby was kept on follow-up without treatment. Within
7 weeks, PBF and bone marrow findings returned to normal, and the child was diagnosed as having Transient leukaemia with Down
syndrome. 相似文献
24.
25.
26.
27.
Jin Ho Whang Min Keun Kim Kyueng‐Whan Min Jae Young Hong Hitesh N. Modi Seung Woo Suh 《Clinical anatomy (New York, N.Y.)》2012,25(8):1066-1073
In the present study, we investigated whether there is a difference between visual depth (VD) and radiological image depth (RD) of cages (i.e., structural interbody support devices) placed in disc spaces during posterior lumbar interbody fusion and whether soft tissues covering the posterior border of the vertebral body and associated disc space are the cause of any observed differences. Using digital calipers, cages were inserted at a depth of 5 mm from the soft tissues covering the posterior border of the vertebral body and disc space under direct vision; this depth was defined as VD. After insertion, RD was measured in triplicate. The reliability of RD measurements was evaluated using an intraclass coefficient test. To identify the cause of differences between VD and RD, the thicknesses of soft tissues were measured microscopically. A total of 40 lumbar intervertebral disc spaces with cages were evaluated. The mean RD of cages was 3.12 mm, while the mean difference between the VD and RD of cages (DVRD) was 1.91 mm. On histological examination, the mean thickness of the soft tissue was 2.02 mm. Comparative analysis between histological values and DVRD showed no statistical difference (P = 1.14, 1.55, 0.06). There was a significant difference between VD and RD during cage placement, and soft tissue structure appeared to be responsible for the DVRD of inserted cages. Therefore, cages should be inserted deeper to account for differences between visual and radiological image depths. Clin. Anat. 25:1066–1073, 2012. © 2012 Wiley Periodicals, Inc. 相似文献
28.
Menon BK Kochar P Ah-Seng A Almekhlafi MA Modi J Wong JH Hudon ME Morrish W Demchuk AM Goyal M 《Neuroradiology》2012,54(2):147-154
Introduction
Quicker recanalization results in better clinical outcomes in patients with acute ischemic strokes. We describe our experience with the use of a self-expanding, fully retrievable stent in acute intracranial occlusions. 相似文献29.
Rehan Ul Haq Prashant Modi IK Dhammi Anil K Jain Puneet Mishra 《Indian Journal of Orthopaedics》2013,47(3):302-306
Conjoint bicondylar Hoffa fracture is an extremely rare injury. Only one case has been reported previously in the pediatric age group. We describe this injury in a 17-year-old male who presented following a fall with direct impact on his semiflexed right knee. Plain radiographs were inadequate to define the exact pattern of injury. Computed tomographic (CT) scans demonstrated the coronal fracture involving both the femoral condyles which were joined by a bridge of intact bone. The patient was treated with open reduction and internal fixation using swashbuckler (modified anterior) approach. Union occurred within 3 months and at final followup (at 18 months) the patient had a good clinical outcome. The possible mechanism of injury is discussed. 相似文献
30.
Nidhi Tandon Surbhi Sidana S. Vincent Rajkumar Angela Dispenzieri Morie A. Gertz Martha Q. Lacy 《Amyloid》2017,24(3):183-188
We analysed factors predicting early treatment failure (ETF), after first-line therapy for light-chain amyloidosis (AL). AL amyloidosis patients seen at Mayo Clinic within 90?days of diagnosis, from 2006 to 2015, excluding those who died within 3 months of initial therapy, were analysed retrospectively. ETF was defined as progression requiring treatment change or death within 12 (ETF12) or 24 (ETF24) months of first-line treatment. Non-ETF included those with a follow-up of more than 12 or 24 months who had progression beyond 12 or 24 months. A total of 724 patients met the study criteria; 244 (33.7%) had ETF12 and 388 (53.6%) had ETF24. Patients with ETF12 were older (64.1 vs. 62.2?years) with higher prevalence of cardiac (81 vs. 64.1%) and multi-organ involvement (67.2 vs. 45.4%) and higher proportion of patients with t(11; 14) (58.5 vs. 44.3%) or in higher Mayo 2012 stage (58.5 vs. 41.1%).The median follow-up was 5.4?years from start of initial therapy. In multivariate analysis, presence of t(11; 14) and non-incorporation of autologous transplant in initial therapy are significant predictors of ETF12 (p?=?.01and p?=?.003) and ETF24 (p?=?.0001 and p?=?.005) while Mayo stage is predictive of ETF24 (p?=?.002), but not ETF12. 相似文献