全文获取类型
收费全文 | 199328篇 |
免费 | 17979篇 |
国内免费 | 7060篇 |
专业分类
耳鼻咽喉 | 1301篇 |
儿科学 | 2868篇 |
妇产科学 | 2355篇 |
基础医学 | 9991篇 |
口腔科学 | 3650篇 |
临床医学 | 22553篇 |
内科学 | 23442篇 |
皮肤病学 | 2981篇 |
神经病学 | 7827篇 |
特种医学 | 5530篇 |
外国民族医学 | 44篇 |
外科学 | 15595篇 |
综合类 | 36964篇 |
现状与发展 | 35篇 |
一般理论 | 25篇 |
预防医学 | 11029篇 |
眼科学 | 2523篇 |
药学 | 18892篇 |
377篇 | |
中国医学 | 37369篇 |
肿瘤学 | 19016篇 |
出版年
2024年 | 974篇 |
2023年 | 3973篇 |
2022年 | 7068篇 |
2021年 | 9412篇 |
2020年 | 9200篇 |
2019年 | 7264篇 |
2018年 | 6726篇 |
2017年 | 7900篇 |
2016年 | 8189篇 |
2015年 | 7882篇 |
2014年 | 15797篇 |
2013年 | 17219篇 |
2012年 | 13508篇 |
2011年 | 14270篇 |
2010年 | 11671篇 |
2009年 | 10112篇 |
2008年 | 9271篇 |
2007年 | 9941篇 |
2006年 | 8544篇 |
2005年 | 7426篇 |
2004年 | 5992篇 |
2003年 | 5279篇 |
2002年 | 4318篇 |
2001年 | 3786篇 |
2000年 | 3165篇 |
1999年 | 2429篇 |
1998年 | 1960篇 |
1997年 | 1689篇 |
1996年 | 1403篇 |
1995年 | 1223篇 |
1994年 | 987篇 |
1993年 | 723篇 |
1992年 | 686篇 |
1991年 | 623篇 |
1990年 | 502篇 |
1989年 | 428篇 |
1988年 | 411篇 |
1987年 | 351篇 |
1986年 | 273篇 |
1985年 | 319篇 |
1984年 | 281篇 |
1983年 | 191篇 |
1982年 | 198篇 |
1981年 | 196篇 |
1980年 | 164篇 |
1979年 | 138篇 |
1978年 | 73篇 |
1977年 | 55篇 |
1976年 | 57篇 |
1975年 | 39篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
13.
14.
《Urologic oncology》2015,33(5):217-225
Although both surgery and radiation are potential curative options for men with clinically localized prostate cancer, a significant proportion of men with high-risk and locally advanced disease will demonstrate biochemical and potentially clinical progression of their disease. Neoadjuvant systemic therapy before radical prostatectomy (RP) is a logical strategy to improve treatment outcomes for men with clinically localized high-risk prostate cancer. Furthermore, delivery of chemotherapy and other systemic agents before RP affords an opportunity to explore the efficacy of these agents with pathologic end points.Neoadjuvant chemotherapy, primarily with docetaxel (with or without androgen deprivation therapy), has demonstrated feasibility and safety in men undergoing RP, but no study to date has established the efficacy of neoadjuvant chemotherapy or neoadjuvant chemohormonal therapies. Other novel agents, such as those targeting the vascular endothelial growth factor receptor, epidermal growth factor receptor, platelet-derived growth factor receptor, clusterin, and immunomodulatory therapeutics, are currently under investigation. 相似文献
15.
16.
目的探讨脂肪抽吸与腹壁成形术联合进行腹壁体形重塑的临床疗效,总结手术成功与减少并发症的经验。方法对18例腹部脂肪堆积伴腹壁皮肤松弛的患者采用肿胀麻醉,负压吸引器行腹壁脂肪抽吸;做耻骨联合上W形切口,折叠缝合腹直肌前鞘,切除多余皮瓣后分层缝合腹壁。结果所有切口均Ⅰ期愈合,随访4~24个月,腹部平坦,切口瘢痕不明显,腹围平均缩小15 cm,外形满意。结论根据患者腹部皮肤、皮下脂肪、腹壁肌肉等多方面的情况,有针对性的采用脂肪抽吸与腹壁整形相结合的腹壁体形重塑术,能够获得满意的效果,手术方法安全可靠。 相似文献
17.
18.
19.
《Journal of Medical Imaging and Radiation Sciences》2015,46(4):442-449
The purpose of this literature review is to investigate clinical treatment methods of total body irradiation within the context of a clinical department adopting a paediatric cohort with no existing technique. An extensive review of the literature was conducted using PubMed, Science Direct, Google Scholar, and Clinicians Knowledge Network. Articles were limited to nonhelical tomotherapy, nonparticle therapies, and those using hyperfractionated regimes. Total marrow irradiation was excluded because of national treatment and trial limitations. Of the numerous patient positioning methods present within the literature, the most comfortable and reproducible positioning methods for total body irradiation include both supine and the supine and/or prone combination. These positions increased stability and patient comfort during treatment, while also facilitating computed tomography data acquisition at the simulation stage. Ideally, dose calculations should be performed using a three-dimensional treatment planning system and quality assurance procedures that include in vivo dosimetry measurements. The available literature also suggests inhomogeneity correction factors and intensity modulation are superior to conventional open field techniques and should be implemented within developing protocols. Dynamic machine dose modulation is suggested to reduce department impact, removing the need for tissue compensators and accessory shielding devices, while providing significant improvements to treatment time and dose accuracy. Further long-term survival and intensity modulation studies are warranted, including direct comparisons of both dose modulation and treatment efficiency. 相似文献
20.
Walid K. Abu Saleh Phillip Mason Odeaa Al Jabbari Hany Samir Brian A. Bruckner 《Texas Heart Institute journal / from the Texas Heart Institute of St. Luke's Episcopal Hospital, Texas Children's Hospital》2015,42(6):569-571
The Impella 5.0, a percutaneously inserted left ventricular assist device, has been used to support patients who have severe heart failure or who are undergoing high-risk percutaneous coronary intervention. We report our surgical placement of the Impella 5.0, through a graft sewn to the aorta, to unload the left ventricle of a 59-year-old man who was undergoing venoarterial extracorporeal membrane oxygenation for postcardiotomy shock. The patient underwent successful placement of a long-term left ventricular assist device before his discharge from the hospital. The versatility of the Impella 5.0 is exemplified in this patient who was successfully bridged to long-term support. 相似文献