全文获取类型
收费全文 | 11636篇 |
免费 | 658篇 |
国内免费 | 39篇 |
专业分类
耳鼻咽喉 | 148篇 |
儿科学 | 301篇 |
妇产科学 | 271篇 |
基础医学 | 1494篇 |
口腔科学 | 349篇 |
临床医学 | 1049篇 |
内科学 | 2104篇 |
皮肤病学 | 92篇 |
神经病学 | 1412篇 |
特种医学 | 266篇 |
外科学 | 1317篇 |
综合类 | 149篇 |
一般理论 | 27篇 |
预防医学 | 1191篇 |
眼科学 | 331篇 |
药学 | 927篇 |
中国医学 | 28篇 |
肿瘤学 | 877篇 |
出版年
2022年 | 47篇 |
2021年 | 134篇 |
2020年 | 77篇 |
2019年 | 153篇 |
2018年 | 204篇 |
2017年 | 150篇 |
2016年 | 165篇 |
2015年 | 180篇 |
2014年 | 289篇 |
2013年 | 487篇 |
2012年 | 677篇 |
2011年 | 748篇 |
2010年 | 411篇 |
2009年 | 400篇 |
2008年 | 790篇 |
2007年 | 838篇 |
2006年 | 805篇 |
2005年 | 876篇 |
2004年 | 846篇 |
2003年 | 851篇 |
2002年 | 832篇 |
2001年 | 95篇 |
2000年 | 55篇 |
1999年 | 101篇 |
1998年 | 153篇 |
1997年 | 143篇 |
1996年 | 133篇 |
1995年 | 109篇 |
1994年 | 94篇 |
1993年 | 109篇 |
1992年 | 80篇 |
1991年 | 69篇 |
1990年 | 55篇 |
1989年 | 59篇 |
1988年 | 56篇 |
1987年 | 40篇 |
1986年 | 52篇 |
1985年 | 67篇 |
1984年 | 118篇 |
1983年 | 79篇 |
1982年 | 111篇 |
1981年 | 122篇 |
1980年 | 88篇 |
1979年 | 51篇 |
1978年 | 51篇 |
1977年 | 45篇 |
1976年 | 39篇 |
1975年 | 38篇 |
1974年 | 39篇 |
1973年 | 28篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
Patricia Kudo Katie Dainty Michael Clarfield Larry Coughlin Pauline Lavoie Constance Lebrun 《Journal of orthopaedic research》2006,24(2):115-123
Despite numerous publications and clinical trials, the results of treatment of recalcitrant chronic plantar fasciitis with extracorporeal shockwave therapy (ESWT) still remain equivocal as to whether or not this treatment provides relief from the pain associated with this condition. The objective of this study was to determine whether extracorporeal shock wave therapy can safely and effectively relieve the pain associated with chronic plantar fasciitis compared to placebo treatment, as demonstrated by pain with walking in the morning. This was set in a multicenter, randomized, placebo-controlled, double-blind, confirmatory clinical study undertaken in four outpatient orthopedic clinics. The patients, 114 adult subjects with chronic plantar fasciitis, recalcitrant to conservative therapies for at least 6 months, were randomized to two groups. Treatment consisted of approximately 3,800 total shock waves (+/-10) reaching an approximated total energy delivery of 1,300 mJ/mm(2) (ED+) in a single session versus placebo treatment. This study demonstrated a statistically significant difference between treatment groups in the change from baseline to 3 months in the primary efficacy outcome of pain during the first few minutes of walking measured by a visual analog scale. There was also a statistically significant difference between treatments in the number of participants whose changes in Visual Analog Scale scores met the study definition of success at both 6 weeks and 3 months posttreatment; and between treatment groups in the change from baseline to 3 months posttreatment in the Roles and Maudsley Score. The results of this study confirm that ESWT administered with the Dornier Epos Ultra is a safe and effective treatment for recalcitrant plantar fasciitis. 相似文献
32.
A R Zander S Culbert S Jagannath G Spitzer M Keating N Larry K Cockerill J Hester L Horwitz L Vellekoop 《Cancer》1987,59(6):1083-1086
A high dose combination chemotherapy regimen (CBV) consisting of cyclophosphamide (1.5 gm/m2 day 1 to day 4); BCNU (300 mg/m2 day 1) and etoposide (100 mg/m2 every 12 hours for 6 doses), followed by bone marrow transplant from human leukocyte antigen (HLA) identical sibling donors, was evaluated in 29 patients in whom acute leukemia was in relapse or remission. Engraftment of donor cell type occurred in all but one of 21 patients, in whom marker differences between donor and recipient were established. Two of 11 patients transplanted during relapse of the disease, lived beyond 1 year after bone marrow transplantation. One patient died free of leukemia, 41 months after transplantation of meningitis. Two of seven patients transplanted during the second remission of the disease, are alive and free of leukemia at 42+, and 8+ months. All patients transplanted during the third or fourth remission of the disease have died from either a further relapse, or transplant related causes. The low incidence of organ toxicity with CBV allows for further dose escalation of its drug components. 相似文献
33.
Ethan M. Braunstein M.D. Steven A. Goldstein Ph.D. Janet Ku M.S. Patrick Smith M.D. Larry S. Matthews M.D. 《Skeletal radiology》1986,15(1):27-31
We evaluated the relative contribution of plain radiographs and computed tomography to the assessment of fracture healing under experimental circumstances. In 15 sheep, we performed midshaft femoral osteotomies and internal fixation of the resultant segmental fractures. Radiographs were obtained preoperatively and immediately postoperatively. Animals were sacrificed at 3 weeks, 6 weeks, 12 weeks, 24 weeks, and 36 weeks after surgery, and the femoral specimens radiographed. After removal of the internal fixation devices, computed tomographic scans of the specimens were performed.By 3 weeks, callus was visible, but at 6 weeks, a trabecular pattern in the callus was seen on plain films but not on computed tomography. There was progressive organization of the callus on both studies. At 24 weeks, computed tomography demonstrated fracture lines not seen due to overlying callus on plain films and also more accurately showed incomplete union. By 36 weeks, healing was essentially complete according to both modalities, although there still were small gaps in the callus detectable on computed tomography but not on plain films.Computed tomography may be of value in the evaluation of fractures of long bones in those cases in which clinical examination and plain radiographs fail to give adequate information as to the status of healing. 相似文献
34.
Larry R. Faulkner M.D. Joseph D. Bloom M.D. David L. Cutler M.D. James H. Shore M.D. J. Donald Bray M.D. Joseph Murray M.S. 《Community mental health journal》1987,23(4):260-270
The authors review the relationship that has evolved over the years between the Department of Psychiatry at Oregon Health Sciences University and Oregon's community and state mental health programs. They describe the compatibility that exists between the basic requirements of academic psychiatry departments and public mental health programs and demonstrate how these organizations have been able to fulfill one another's needs in Oregon. Specific examples of successful collaborations in the areas of education, administration, research, and service are presented to illustrate how relationships that have been designed to meet specific requirements of one organization can fulfill many requirements of both. Suggestions are provided for those organizations contemplating similar collaborative endeavors. 相似文献
35.
36.
37.
38.
39.
40.
缺血性卒中或短暂性脑缺血发作患者的卒中预防指南 总被引:8,自引:0,他引:8
Ralph L.Sacco Robert Adams Grge Albers Mark J.ALBERTS Oscar Benavente Karen Furie Larry B.Goldstein Philip Gorelick Jonathan Halperin Robert Harbaugh S.Claiborne Johnston Irene Katzan Margaret Kelly-Hayes Edgar J.Kenton Michael Marks Lee H.Schwamm Thomas Tomsick 曹勇军 《中华脑血管病论坛》2006,4(1):21-66
这份新声明旨在为缺血性卒中或短暂性脑缺血发作存活者的缺血性卒中预防提供全面和及时的循证推荐,循证推荐包括对危险因素的控制,动脉粥样硬化性疾病的干预措施,心源性栓塞的抗栓治疗以及非心源性卒中抗血小板药的应用。另外,还为其他多种特殊情况下复发性卒中的预防提供了推荐、包括动脉夹层分离、卵圆孔未闭、高同型半胱氨酸血症、高凝状态、镰状细胞病、脑静脉窦血栓形成、女性卒中(特别是与妊娠和绝经后激素替代治疗相关卒中),脑出血后肮凝药的应用,以及该指南在高危人群中执行和应用的特殊措施。 相似文献