全文获取类型
收费全文 | 452篇 |
免费 | 27篇 |
国内免费 | 34篇 |
专业分类
儿科学 | 23篇 |
妇产科学 | 2篇 |
基础医学 | 40篇 |
口腔科学 | 7篇 |
临床医学 | 42篇 |
内科学 | 76篇 |
皮肤病学 | 3篇 |
神经病学 | 15篇 |
特种医学 | 122篇 |
外科学 | 58篇 |
综合类 | 39篇 |
预防医学 | 12篇 |
眼科学 | 3篇 |
药学 | 33篇 |
肿瘤学 | 38篇 |
出版年
2021年 | 9篇 |
2020年 | 3篇 |
2019年 | 6篇 |
2018年 | 4篇 |
2017年 | 5篇 |
2016年 | 5篇 |
2015年 | 9篇 |
2014年 | 11篇 |
2013年 | 15篇 |
2012年 | 19篇 |
2011年 | 24篇 |
2010年 | 9篇 |
2009年 | 26篇 |
2008年 | 14篇 |
2007年 | 35篇 |
2006年 | 8篇 |
2005年 | 10篇 |
2004年 | 12篇 |
2003年 | 7篇 |
2002年 | 22篇 |
2001年 | 10篇 |
2000年 | 11篇 |
1999年 | 12篇 |
1998年 | 27篇 |
1997年 | 21篇 |
1996年 | 15篇 |
1995年 | 18篇 |
1994年 | 23篇 |
1993年 | 13篇 |
1992年 | 1篇 |
1991年 | 3篇 |
1990年 | 4篇 |
1989年 | 13篇 |
1988年 | 13篇 |
1987年 | 8篇 |
1986年 | 9篇 |
1985年 | 11篇 |
1984年 | 8篇 |
1983年 | 6篇 |
1982年 | 8篇 |
1981年 | 7篇 |
1980年 | 8篇 |
1979年 | 1篇 |
1978年 | 3篇 |
1977年 | 1篇 |
1976年 | 4篇 |
1975年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有513条查询结果,搜索用时 15 毫秒
1.
2.
Fracture of femoral shaft in adults is common and mostly managed with intramedullary interlocking nails. Complications during closed intramedullary femoral nailing are uncommon, and mostly of them are caused by technical reasons. We describe a case of closed nailing for a femoral shaft fracture in which a jammed intramedullary guide wire, due to an incarcerated bone fragment at the nail tip, was inadvertently advanced across the knee. Forceful attempt of nail insertion caused this complication, which was probably attributed to nail design. 相似文献
3.
Reena Kothari Dhananjaya Sharma Dileep Singh Thakur Vinod Kumar Uday Somashekar 《JSLS, Journal of the Society of Laparoendoscopic Surgeons》2014,18(2):273-276
Background and Objectives:
Thromboangiitis obliterans is a common peripheral vascular disease in India. This study was conducted to assess the efficacy of thoracoscopic dorsal sympathectomy as a treatment for Buerger disease of the upper extremities.Methods:
Thirty thoracoscopic dorsal sympathectomies (17 left- and 13 right-sided) were performed in a tertiary medical center in 5 women and 20 men (mean age, 41 years) between July 2010 and February 2013.Results:
The mean operative time was 30 minutes, and the mean hospital stay was 52 hours. There were no complications. All patients had improvement in pain and were relapse-free after a mean follow-up period of 11.63 months.Discussion:
Thoracoscopic dorsal sympathectomy reduces pain significantly by reducing peripheral resistance and promoting collateral development. The increased magnification of the thoracoscopic approach permits better visualization, ensuring complete excision and therefore good results. Thoracoscopic dorsal sympathectomy for Buerger disease of the upper limb is a safe and effective treatment. 相似文献4.
Background:
Partial tears of the anterior cruciate ligament (ACL) are common and usually present with symptomatic instability. The remnant fibers are usually removed and a traditional ACL reconstruction is done. But with increased understanding of ACL double bundle anatomy, the remnant tissue preservation along with a single bundle augmentation of the torn bundle is also suggested. The purpose of this study was to evaluate the results of selective anatomic augmentation of symptomatic partial ACL tears. Our hypothesis is that this selective augmentation of partial ACL tears could restore knee stability and function.Materials and Methods:
Consecutive cases of 314 ACL reconstructions, 40 patients had intact ACL fibers in the location corresponding to the anteromedial (AM) or posterolateral (PL) bundle and were diagnosed as partial ACL tears perioperatively. All patients underwent selective augmentation of the torn bundle, while keeping the remaining fibers intact using autogenous hamstring graft. A total of 38 patients (28 males, 10 females) were available with a minimum of 3 years followup. 26 cases had AM bundle tears and 12 cases had PL bundle tears respectively. Patients were assessed with International Knee Documentation Committee (IKDC) 2000 Knee Evaluation Form, Lysholm score; instrumented knee testing was performed with the arthrometer (KT 2000). Statistical analysis was performed to compare the preoperative and postoperative objective evaluation.Results:
At 3 years followup, 31.6% patients were graded A, 65.8% were graded B and 2.6% was graded C at IKDC objective evaluation. Manual laxity tests, Lysholm''s score, mean side to side instrumental laxity and Tegner activity score improved significantly. 76% patients returned to preinjury level of sports activity after augmentation.Conclusion:
The results of anatomic single bundle augmentation in partial ACL tears are encouraging with excellent improvement in functional scores, side to side laxity and return to sports activity. 相似文献5.
The cell death regulator GRIM-19 is an inhibitor of signal transducer and activator of transcription 3 总被引:16,自引:0,他引:16 下载免费PDF全文
6.
Anshul Goel Dhananjaya Sabat Pritam Agrawal 《Journal of Clinical Orthopaedics and Trauma》2016,7(1):61-65
Medial condyle Hoffa fractures are intra articular injuries, which require prompt anatomical reduction and internal fixation. Arthroscopy-guided fixation of these fractures has also been advocated; the advantages include avoidance of soft tissue dissection, fast recovery and mobilization. We describe a case of a 28-year-old male patient presenting with a 10-day-old medial condylar Hoffa fracture. Skin condition prevented from conventional open reduction and internal fixation; hence, taking note of the urgency of fixation of an intraarticular fracture, arthroscopic-assisted minimally invasive approach was performed with good outcome. 相似文献
7.
H Bangaru BL Nanjundaswamy KAK Surendran B Vijaya 《Indian journal of dermatology》2013,58(6):493-Dec;58(6):493
8.
9.
10.
目的:灰色模型是运用一定的数学方法使信息不完全明确的系统经数据处理后能得到较明确结果的一种数学预测模型,体外细胞培养的影响因素较多,属于信息不完全明确的灰色系统,故运用灰色GM(1,1)模型对成骨细胞增殖、分化的变化规律进行预测,验证模型在体外细胞培养中的可应用性。方法:实验于2005—11/2006—03在广东医学院药理教研室完成。①实验过程:应用酶序列消化分离培养法培养新生大鼠颅骨成骨细胞;用MTT法测定体外培养成骨细胞在不含血清培养液A值,以了解成骨细胞的增殖情况;对硝基苯磷酸盐法观察体积分数为0.01的胎牛血清培养液对体外培养成骨细胞分泌碱性磷酸酶活性的影响,代表成骨细胞的分化情况。②灰色GM(1,1)模型建立:运用灰色系统理论,通过SAS8.1软件对体外培养成骨细胞MTT值和碱性磷酸酶OT值进行分析和预测。结果:运用灰色系统理论的后验差检验方法对模型进行检验,MTT这一指标的平均相对误差为4.4%,碱性磷酸酶这一指标的平均相对误差为7.04%,后验差比值为0.048和0.315,综合评定该模型为“好”。结论:灰色GM(1,1)模型对体外培养成骨细胞MTT值和碱性磷酸酶的OT值变化的预测精度高,结果可靠。体外培养成骨细胞MTT值和碱性磷酸酶的OT值的变化可用灰色GM(1,1)模型进行预测。 相似文献