全文获取类型
收费全文 | 38888篇 |
免费 | 3913篇 |
国内免费 | 2277篇 |
专业分类
耳鼻咽喉 | 768篇 |
儿科学 | 353篇 |
妇产科学 | 878篇 |
基础医学 | 2668篇 |
口腔科学 | 372篇 |
临床医学 | 5684篇 |
内科学 | 7563篇 |
皮肤病学 | 735篇 |
神经病学 | 1534篇 |
特种医学 | 1621篇 |
外国民族医学 | 31篇 |
外科学 | 7089篇 |
综合类 | 6371篇 |
现状与发展 | 63篇 |
预防医学 | 1566篇 |
眼科学 | 767篇 |
药学 | 1946篇 |
35篇 | |
中国医学 | 607篇 |
肿瘤学 | 4427篇 |
出版年
2024年 | 72篇 |
2023年 | 1267篇 |
2022年 | 1980篇 |
2021年 | 2854篇 |
2020年 | 2611篇 |
2019年 | 1272篇 |
2018年 | 1275篇 |
2017年 | 1123篇 |
2016年 | 1213篇 |
2015年 | 1638篇 |
2014年 | 2573篇 |
2013年 | 2344篇 |
2012年 | 2812篇 |
2011年 | 2810篇 |
2010年 | 2374篇 |
2009年 | 2137篇 |
2008年 | 1793篇 |
2007年 | 2438篇 |
2006年 | 2292篇 |
2005年 | 1699篇 |
2004年 | 1444篇 |
2003年 | 1002篇 |
2002年 | 777篇 |
2001年 | 661篇 |
2000年 | 503篇 |
1999年 | 509篇 |
1998年 | 355篇 |
1997年 | 268篇 |
1996年 | 144篇 |
1995年 | 141篇 |
1994年 | 109篇 |
1993年 | 50篇 |
1992年 | 113篇 |
1991年 | 87篇 |
1990年 | 119篇 |
1989年 | 50篇 |
1988年 | 39篇 |
1987年 | 11篇 |
1985年 | 16篇 |
1984年 | 5篇 |
1983年 | 7篇 |
1982年 | 10篇 |
1981年 | 9篇 |
1980年 | 6篇 |
1976年 | 4篇 |
1974年 | 10篇 |
1973年 | 5篇 |
1971年 | 4篇 |
1967年 | 4篇 |
1966年 | 4篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
72.
通过文献研究、问卷调查、专家访谈、现地调研等方法,分析医院离退休干部参与社会治理的现状及影响因素,探讨社区对离退休干部参与社会治理的需求,提出通过党建引领医院离退休干部参与社会治理的“1235”模式,并给出具体的操作路径,以期为推动医院离退休干部积极参与社会治理提供参考。 相似文献
73.
74.
Stereotactic body radiotherapy (SBRT) has become an important radiotherapy technology. In recent years, with the continuous improvement of the mechanical properties of the linear accelerator (LINAC), LINAC-based SBRT is gradually emerging. In this article, the history, technological progress, radiation physics, clinical application of LINAC-based SBRT were elaborated, aiming to promote the development of LINAC-based SBRT. 相似文献
75.
《European journal of surgical oncology》2021,47(12):3105-3112
BackgroundDetails of perioperative outcomes and survival after gastric cancer surgery in prior transplant recipients have received minimal research attention.MethodsWe performed an observational cohort study using the database of 20,147 gastric cancer patients who underwent gastrectomy at a single gastric cancer center in Korea. Forty-one solid organ recipients [kidney (n = 35), liver (n = 5), or heart (n = 1)] were matched with 205 controls using propensity score matching.ResultsOperation time, blood loss, and postoperative pain were similar between groups. Short-term complication rates were similar between transplantation and control groups (22.0% vs. 20.1%, P = 0.777). Transplantation group patients with stage 1 gastric cancer experienced no recurrence, while those with stage 2/3 cancer had significantly higher recurrence risk compared to the controls (P = 0.049). For patients with stage 1 cancer, the transplantation group had a significantly higher rate of non-gastric cancer-related deaths compared to the controls (19.2% vs. 1.4%, P = 0.001). For those with stage 2/3 cancer, significantly lower proportion of the transplantation group received adjuvant chemotherapy compared to the control group (26.7% vs. 80.3%, P < 0.001). The transplantation group had a higher (albeit not statistically significant) rate of gastric cancer-related deaths compared to the controls (40.0% vs. 18.0%, P = 0.087).ConclusionTransplant recipients and non-transplant recipients exhibited similar perioperative and short-term outcomes after gastric cancer surgery. From long-term outcome analyses, we suggest active surveillance for non-gastric cancer-related deaths in patients with early gastric cancer, as well as strict oncologic care in patients with advanced cancer, as effective strategies for transplant recipients. 相似文献
76.
Angiopoietin-like proteins (ANGPTL)-3 and -4 regulate lipid metabolism, but the effect of tree nuts of varying fatty acid composition on post-meal responses is unknown. The purpose of the study was to conduct a secondary analysis of two studies on ANGPTL3 and -4 responses to meals containing different tree nuts. We hypothesized that the pecan-containing meal would mitigate postprandial rises in ANGPTL3 compared to the traditional meal without nuts in males, but not females. In addition, we hypothesized that there would be no other differences between any other treatments in ANGPTL3 or -4 responses. The two studies were double-blind, randomized crossover trials. Twenty-two adults (10=male, 12=female) completed study 1, which compared meals containing pecans vs. no nuts (control), and thirty adults (14=male, 16=female) completed study 2, which compared meals containing black walnuts, English walnuts (EW), or no nuts (control). Blood was collected at fasting, 30, 60, 120, and 180min postprandially. In study 1, ANGPTL3 was suppressed more in pecan vs. control in males (iAUC: -579.4±219.4 vs. -128.4±87.1pg/mL/3h, P<.05). In study 2, there was no difference in ANGPTL3 between black walnuts vs. EW, but ANGPTL3 was suppressed more in control vs. black walnuts in females only (iAUC: -196.4±138.4 vs. 102.1±90.1pg/mL/3h, P<.05). There were no differences in ANGPTL4 between treatments. In conclusion, adding pecans to a meal decreased ANGPTL3 in males, but not females. These data highlight the importance of investigating the impact of nutrients and sex on postprandial ANGPTL3 ad -4 responses to better understand their ability to reduce cardiovascular disease risk. 相似文献
77.
78.
79.
80.
目的介绍腹腔镜下经腹部和后矢状路联合手术治疗直肠肛门手术后复发性直肠尿道瘘和直肠阴道瘘。方法5例术后多次复发性直肠尿道瘘或直肠阴道瘘患儿,男3例,女2例,年龄3~13岁。腹部在腹腔镜下游离结肠,远端尽可能从骶前向盆腔分离肠管,近端肠管游离保证正常结肠能无张力拖至肛门处吻合。低位盆腔肠管分离通过后矢状位切口(肛缘后上1cm),正中切开直肠后壁,直肠内剥离黏膜至齿状线,直视下修补瘘口,近端切断结肠,将正常结肠拖出与肛门吻合。结果所有患儿排便功能良好,仅1例有轻度污粪,未见瘘管复发。结论腹腔镜下经腹部和后矢状路游离结肠、直肠,创伤小,视野清晰,避开了粘连紧密的瘘管分离,完整结肠拖出避免了瘘管的复发,后矢状路直肠切开能直视下显示并修补瘘管。 相似文献