全文获取类型
收费全文 | 172289篇 |
免费 | 33667篇 |
国内免费 | 1285篇 |
专业分类
耳鼻咽喉 | 3229篇 |
儿科学 | 4498篇 |
妇产科学 | 3287篇 |
基础医学 | 12738篇 |
口腔科学 | 5830篇 |
临床医学 | 33611篇 |
内科学 | 40220篇 |
皮肤病学 | 4097篇 |
神经病学 | 19215篇 |
特种医学 | 6423篇 |
外科学 | 29873篇 |
综合类 | 1014篇 |
现状与发展 | 40篇 |
一般理论 | 92篇 |
预防医学 | 18867篇 |
眼科学 | 3951篇 |
药学 | 6266篇 |
中国医学 | 99篇 |
肿瘤学 | 13891篇 |
出版年
2024年 | 779篇 |
2023年 | 5527篇 |
2022年 | 2036篇 |
2021年 | 4944篇 |
2020年 | 6469篇 |
2019年 | 4036篇 |
2018年 | 9098篇 |
2017年 | 8854篇 |
2016年 | 9483篇 |
2015年 | 9893篇 |
2014年 | 13231篇 |
2013年 | 15731篇 |
2012年 | 9816篇 |
2011年 | 9828篇 |
2010年 | 10176篇 |
2009年 | 11973篇 |
2008年 | 8496篇 |
2007年 | 7673篇 |
2006年 | 8444篇 |
2005年 | 6974篇 |
2004年 | 5885篇 |
2003年 | 5214篇 |
2002年 | 4737篇 |
2001年 | 2378篇 |
2000年 | 1529篇 |
1999年 | 2232篇 |
1998年 | 2809篇 |
1997年 | 2444篇 |
1996年 | 2393篇 |
1995年 | 2090篇 |
1994年 | 1470篇 |
1993年 | 1295篇 |
1992年 | 1005篇 |
1991年 | 827篇 |
1990年 | 690篇 |
1989年 | 688篇 |
1988年 | 653篇 |
1987年 | 508篇 |
1986年 | 482篇 |
1985年 | 450篇 |
1984年 | 441篇 |
1983年 | 457篇 |
1982年 | 466篇 |
1981年 | 430篇 |
1980年 | 288篇 |
1979年 | 162篇 |
1978年 | 239篇 |
1977年 | 220篇 |
1976年 | 162篇 |
1974年 | 129篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
101.
Although psychoanalysis was the first-choice treatment for premature ejaculation (PE) between 1920 and 1960, hardly any reports on its efficacy have been published. Moreover, a scientific debate about its findings has never been fully developed. The recent progress that has been made in the classification of three different PE syndromes creates a new opportunity for psychoanalytic investigations of men with complaints of PE, distinguished by the actual duration of their intravaginal ejaculation latency time (IELT). The term premature-like ejaculatory dysfunction has been introduced to distinguish men with self-perceived PE at normal and long IELT durations from those men with lifelong, acquired and normal variable PE. Psychoanalytic research may contribute to a better understanding of the consequences of objective early ejaculations on the unconscious mental life of men with the four forms of PE. By integrating neurobiological, clinical and epidemiological data of ejaculatory performance, a revival of psychoanalytic research of PE in the four distinct, classified PE groups, will probably contribute to a deeper insight in to the unconscious mental life of men affected by PE. 相似文献
102.
103.
104.
105.
106.
107.
108.
109.
Katharine R. Owen Mollie Donohoe Sian Ellard Andrew T. Hattersley 《Diabetic medicine》2003,20(10):823-827
Background Familial partial lipodystrophy (FPLD) is a monogenic form of diabetes characterised by a dominantly inherited disorder of adipose tissue associated with the loss of subcutaneous fat from the limbs and trunk, with excess fat deposited around the face and neck. The lipodystrophy causes severe insulin resistance, resulting in acanthosis nigricans, diabetes, dyslipidaemia, and increased risk of cardiovascular disease. Preliminary results from animals and man suggest that increasing subcutaneous fat by treatment with thiazolidinediones should improve insulin resistance and the associated features of this syndrome. Case report We report a 24-year-old patient with FPLD caused by a mutation in the LMNA gene (R482W) treated with 12 months of rosiglitazone. Subcutaneous fat increased following rosiglitazone treatment as demonstrated by a 29% generalised increase in skin-fold thickness. Leptin levels increased from 5.8 to 11.2 ng/ml. Compared with treatment on Metformin, there was an increase in insulin sensitivity (HOMA S% 17.2–31.6) but no change in glycaemic control. The lipid profile worsened during the follow-up period. Conclusion This initial case suggests that, for modification of cardiovascular risk factors, there are no clear advantages in treating patients with FPLD with rosiglitazone despite increases in subcutaneous adipose tissue. Larger series will be needed to identify moderate beneficial effects and treatment may be more effective in patients with generalised forms of lipodystrophy. 相似文献
110.
The purpose of this study was to investigate radiographic measurements in a cohort of patients with juvenile hallux valgus (with a hallux valgus angle > 15 degrees ) using standardized weightbearing x-rays compared with an age-matched control group. First metatarsal protrusion distance, metatarsus primus adductus angle, metatarsus adductus, first metatarsal cuneiform angle, calcaneal inclination angle, and talocalcaneal angles were assessed with discriminant functional analysis. A total of 37 sets of data were analyzed from patients with a mean age of 13.45 +/- 1.75 years. The study identified 2 significant components of juvenile hallux valgus: a positive first metatarsal protrusion distance (P <.001) and metatarsal primus adductus angle (P = .002). Discriminant functional analysis was then used to determine the best predictors of juvenile hallux valgus. This analysis allowed only 1 variable, metatarsal protrusion distance, as a predictor of whether juvenile hallux valgus was present (P < .001), with 94.3% accuracy. This study showed that a positive metatarsal protrusion distance is a significant component of juvenile hallux valgus. 相似文献