全文获取类型
收费全文 | 17257篇 |
免费 | 1228篇 |
国内免费 | 78篇 |
专业分类
耳鼻咽喉 | 211篇 |
儿科学 | 415篇 |
妇产科学 | 325篇 |
基础医学 | 2555篇 |
口腔科学 | 1309篇 |
临床医学 | 1469篇 |
内科学 | 3746篇 |
皮肤病学 | 455篇 |
神经病学 | 1479篇 |
特种医学 | 496篇 |
外国民族医学 | 1篇 |
外科学 | 1877篇 |
综合类 | 87篇 |
一般理论 | 6篇 |
预防医学 | 1717篇 |
眼科学 | 267篇 |
药学 | 1227篇 |
中国医学 | 88篇 |
肿瘤学 | 833篇 |
出版年
2023年 | 179篇 |
2022年 | 325篇 |
2021年 | 695篇 |
2020年 | 480篇 |
2019年 | 609篇 |
2018年 | 702篇 |
2017年 | 485篇 |
2016年 | 548篇 |
2015年 | 605篇 |
2014年 | 806篇 |
2013年 | 993篇 |
2012年 | 1433篇 |
2011年 | 1469篇 |
2010年 | 827篇 |
2009年 | 651篇 |
2008年 | 977篇 |
2007年 | 1062篇 |
2006年 | 838篇 |
2005年 | 813篇 |
2004年 | 683篇 |
2003年 | 540篇 |
2002年 | 502篇 |
2001年 | 297篇 |
2000年 | 285篇 |
1999年 | 230篇 |
1998年 | 94篇 |
1997年 | 85篇 |
1996年 | 71篇 |
1995年 | 61篇 |
1994年 | 63篇 |
1993年 | 44篇 |
1992年 | 91篇 |
1991年 | 87篇 |
1990年 | 91篇 |
1989年 | 63篇 |
1988年 | 63篇 |
1987年 | 73篇 |
1986年 | 61篇 |
1985年 | 54篇 |
1984年 | 57篇 |
1983年 | 44篇 |
1982年 | 36篇 |
1980年 | 21篇 |
1979年 | 33篇 |
1978年 | 28篇 |
1970年 | 23篇 |
1969年 | 20篇 |
1967年 | 25篇 |
1966年 | 23篇 |
1965年 | 21篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
2.
3.
4.
5.
6.
Iclea Rocha Gama Euclides Marinho Trindade-Filho Suzana Lima Oliveira Nassib Bezerra Bueno Isabelle Tenório Melo Cyro Rego Cabral-Junior Elenita M. Barros Jaqueline A. Galvão Wanessa S. Pereira Raphaela C. Ferreira Bruna R. Domingos Terezinha da Rocha Ataide 《Metabolic brain disease》2015,30(1):93-98
7.
8.
José Antonio Pereira Miguel Pera Manuel López-Cano Marta Pascual Sandra Alonso Silvia Salvans Marta Jiménez-Toscano Alba González-Martín Luis Grande-Posa 《Cirugía espa?ola》2019,97(1):20-26
Objectives
To determine the incidence of incisional hernia (IH) in the extraction incision (EI) in colorectal resection for cancer. To analyze whether the location of the incision has any relationship with the incidence of hernias and whether mesh could be useful for prevention in high-risk patients.Methods
Retrospective review of the colon and rectal surgery database from January 2015 to December 2016. Data were classified into 2 groups, transverse (TI) and midline incision (MI), and the latter was divided into 2 subgroups (mesh [MIM] and suture [MIS]). Patients were classified using the HERNIAscore. Hernias were diagnosed by clinical and/or CT examination.Results
A total of 182 out of 210 surgical patients were included. After a median follow-up of 13.0 months, 39 IH (21.9%) were detected, 23 of which (13.4%) were in the EI; their frequency was lower in the TI group (3.4%) and in the MIM group (5.9%) than in the MIS group (29.5%; p = 0.007). The probability of developing IH in the MIS group showed an OR = 11.7 (95%CI: 3.3-42.0) compared to the TI group and 4.3 (IC 95%: 1.1-16.3) versus the MIM group.Conclusions
The location of the incision is relevant to avoid incisional hernias. Transverse incisions should be used as the first option. When a midline incision is needed, a prophylactic mesh could be considered in high risk patients because it is safe and associated with low morbidity. 相似文献9.
10.
Sabrina Ronco 《Nursing for Women's Health》2021,25(3):207-211
A review of the literature was performed to explore the association between prenatal education and rates of primary cesarean birth for women at low risk for cesarean birth. Most women who are nulliparous with a singleton fetus of term gestational age and in the vertex position are considered to be at low risk and favorable for a vaginal birth, yet the cesarean birth rate for women at low risk was 25.6% in 2019. It has been suggested that the rise in the cesarean birth rate among low-risk women may not be due to medical indications but, rather, to nonmedical factors, such as a provider’s or woman’s preference or lack of prenatal education. Evidence from this literature review supports the premise that prenatal education classes should be routinely incorporated into maternity care in an effort to reduce cesarean birth rates for the low-risk population. 相似文献