全文获取类型
收费全文 | 10249篇 |
免费 | 549篇 |
国内免费 | 52篇 |
专业分类
耳鼻咽喉 | 169篇 |
儿科学 | 284篇 |
妇产科学 | 224篇 |
基础医学 | 1290篇 |
口腔科学 | 1090篇 |
临床医学 | 597篇 |
内科学 | 2388篇 |
皮肤病学 | 241篇 |
神经病学 | 856篇 |
特种医学 | 150篇 |
外科学 | 1210篇 |
综合类 | 35篇 |
一般理论 | 2篇 |
预防医学 | 1044篇 |
眼科学 | 275篇 |
药学 | 611篇 |
中国医学 | 63篇 |
肿瘤学 | 321篇 |
出版年
2024年 | 16篇 |
2023年 | 126篇 |
2022年 | 264篇 |
2021年 | 450篇 |
2020年 | 276篇 |
2019年 | 374篇 |
2018年 | 409篇 |
2017年 | 297篇 |
2016年 | 331篇 |
2015年 | 379篇 |
2014年 | 507篇 |
2013年 | 603篇 |
2012年 | 907篇 |
2011年 | 946篇 |
2010年 | 509篇 |
2009年 | 391篇 |
2008年 | 634篇 |
2007年 | 648篇 |
2006年 | 543篇 |
2005年 | 479篇 |
2004年 | 382篇 |
2003年 | 336篇 |
2002年 | 334篇 |
2001年 | 80篇 |
2000年 | 71篇 |
1999年 | 64篇 |
1998年 | 46篇 |
1997年 | 29篇 |
1996年 | 27篇 |
1995年 | 23篇 |
1994年 | 34篇 |
1993年 | 18篇 |
1992年 | 35篇 |
1991年 | 38篇 |
1990年 | 25篇 |
1989年 | 22篇 |
1988年 | 14篇 |
1987年 | 15篇 |
1986年 | 8篇 |
1985年 | 10篇 |
1984年 | 16篇 |
1983年 | 12篇 |
1982年 | 14篇 |
1981年 | 11篇 |
1980年 | 8篇 |
1978年 | 10篇 |
1977年 | 11篇 |
1976年 | 8篇 |
1975年 | 7篇 |
1966年 | 5篇 |
排序方式: 共有10000条查询结果,搜索用时 125 毫秒
1.
Lara Silveira Abdo Aguiar Rita de Cssia Rossini Lismary Aparecida de Forville Mesquita Gerson Dellatorre 《Journal of Cosmetic Dermatology》2019,18(6):1733-1736
Depigmented lesions may occur as postinflammatory sequelae of subacute cutaneous lupus erythematosus (SCLE), leading to great psychosocial impact. A 53‐year‐old male patient presented with post‐SCLE depigmented facial lesions after five years of disease stability. We proposed surgical treatment with melanocyte‐keratinocyte transplantation procedure (MKTP), and after five months the patient achieved 90% repigmentation, without Koebner phenomenon (KP). In theory, KP is a possible complication of MKTP procedure since the preparation of the receptor area involves the use of dermabrasion. In an attempt to avoid it, we suggest to maintain the treatment of the underlying disease and wait for a minimum period of disease stability before the procedure. 相似文献
2.
3.
4.
5.
Pedro Lopez Matheus Daros Pinto Ronei Silveira Pinto 《Ultrasound in medicine & biology》2019,45(2):612-616
In the work described here, our aim was to determine, in an elderly population, changes in muscle thickness (MT), cross-sectional area (CSA) and echo intensity (EI) of the quadriceps muscles at four time points (0, 5, 10 and 15 min; i.e., T0, T5, T10 and T15, respectively) after changing from a standing to supine position. Twenty-one elderly participants (14 men: 68.1 ± 4.6 y; 8 women: 66.8 ± 4.1 y) were evaluated at four time points. Rectus femoris CSA (RFCSA), MT and EI of the quadriceps femoris (QF) muscles were assessed. EI significantly increased from T0 to T5, T10 and T15 (p < 0.001), whereas no differences were observed between T5 and T15 in the rectus femoris (RFEI), vastus intermedius (VIEI) and quadriceps femoris (QFEI). No differences were observed between any time points in the RFCSA and MT of QF muscles. In summary, these results suggest that periods >5 min are not necessary to obtain consistent MT and EI measurements of quadriceps femoris muscles in the elderly population. 相似文献
6.
André Ricardo Adriano Tiago Silveira Lima Maxime Battistella Martine Bagot 《Anais brasileiros de dermatologia》2015,90(6):892-895
Granulomatous slack skin is an indolent T-cell lymphoma, considered to be a
variant of mycosis fungoides. Clinically it is characterized by areas of
redundant skin, wrinkled, inelastic, with variable erythema and
infiltration besides a poikilodermic surface. A differential diagnosis
unknown to most dermatologists is the giant cell tumor of soft tissue,
which is an extremely rare low-grade sarcoma. The authors report a patient
who had undergone extensive surgery because of a primary diagnosis of giant
cell tumor of soft tissue, but which proved to be granulomatous slack skin
after a second interventional procedure with confirmatory
histopathology. 相似文献
7.
Joseane Balan Da Silva Gleison Daion Piovezana Bossolani Camila Piva Greicy Brisa Malaquias Dias Jancarlo Gomes Ferreira Diogo Francisco Rossoni 《International journal of environmental health research》2016,26(5-6):578-588
The spatial distribution of enteroparasitosis in an indigenous village from Paraná was evaluated to identify areas of risk for these infections. A cross-sectional study (from November 2010 to June 2011) was performed using Three Faecal Test® and Kato &; Katz method and a questionnaire on housing and hygiene conditions was administered. Local geostatistical analyses were performed to determine the spatial distribution of intestinal parasitic infections. The overall prevalence of enteroparasites was 67.2?% (457/680), and the most prevalent taxa were Ascaris lumbricoides (48.8?%) and Trichuris trichiura (44.7?%). The prevalence of heavy infection by soil-transmitted helminths was 3.6?% and the families lived in houses with an average of 5.1 residents and < 2 bedrooms per household. The average number of species per individual present spatial heterogeneity with the highest values (≥0.8) in areas with high clustering of residences. The visualization of the spatial distribution of intestinal parasites in this indigenous village is an important contribution to determining health risk areas and planning decisions and services. 相似文献
8.
Camila Padilha Barbosa Rosalie Barreto Belian Cláudia Marina Tavares de Araújo 《Jornal de pediatria》2021,97(1):80-87
ObjectiveTo present, the process of development and evaluation of an educational software on the Child Health Handbook proposed for the continuing education of primary care nurses and physicians.MethodsQuantitative study of methodological development. For software development, the following steps were followed: definition of objectives; determination of the target audience; choice of pedagogical and theoretical reference for content; content selection and structuring; software development and evaluation by experts (five nurses and four physicians). All responded to an instrument that included four domains: pedagogical; content; functionality; system presentation and usability. The evaluation criteria were arranged on a Likert-type scale. The percentage of agreement and Content Validity Index were used for the quantitative analysis of the degree of agreement, considering a Content Validity Index cutoff point equal to 0.80.ResultsThe overall agreement index, calculated by the arithmetic mean of the Contents Validity Index of the evaluated domains, was 0.96, with scores ranging from 0.90 to 1.00. The average percentage of agreement of the experts per domain was 92.86%, with lower agreement in the content (80.95%), presentation, and usability (90.48%) domains. 100% of percentage of agreement was observed in the pedagogical and functionality domains among the evaluated specialists.ConclusionThe percentage of agreement, Content Validity Index and overall agreement index of the Child Health Handbook educational software in the context of primary care disclosed the software adequacy as an educational resource for continuing education of primary care nurses and physicians. Considering the assessed dimensions, it can also be used by other health professionals and undergraduate students. 相似文献
9.
John Lennon Silva Cunha Amanda Almeida Leite Thamiris de Castro Abrantes Lorena Passoni Vervloet Thayn Melo de Lima Morais Gerson de Oliveira Paiva Neto Tatiana Nayara Librio Kimura Snia Maria Soares Ferreira Ricardo Luiz Cavalcanti de Albuquerque‐Júnior Aline Corrêa Abraho Mario Jos Romaach Bruno Augusto Benevenuto de Andrade Oslei Paes de Almeida Ciro Dantas Soares 《Journal of cutaneous pathology》2021,48(1):24-33
10.