全文获取类型
收费全文 | 2886篇 |
免费 | 235篇 |
国内免费 | 150篇 |
专业分类
耳鼻咽喉 | 9篇 |
儿科学 | 120篇 |
妇产科学 | 114篇 |
基础医学 | 421篇 |
口腔科学 | 122篇 |
临床医学 | 340篇 |
内科学 | 556篇 |
皮肤病学 | 57篇 |
神经病学 | 136篇 |
特种医学 | 443篇 |
外科学 | 244篇 |
综合类 | 58篇 |
一般理论 | 1篇 |
预防医学 | 199篇 |
眼科学 | 89篇 |
药学 | 246篇 |
1篇 | |
肿瘤学 | 115篇 |
出版年
2023年 | 17篇 |
2021年 | 44篇 |
2020年 | 21篇 |
2019年 | 31篇 |
2018年 | 42篇 |
2017年 | 25篇 |
2016年 | 26篇 |
2015年 | 34篇 |
2014年 | 46篇 |
2013年 | 101篇 |
2012年 | 81篇 |
2011年 | 91篇 |
2010年 | 80篇 |
2009年 | 73篇 |
2008年 | 91篇 |
2007年 | 188篇 |
2006年 | 113篇 |
2005年 | 124篇 |
2004年 | 110篇 |
2003年 | 61篇 |
2002年 | 89篇 |
2001年 | 91篇 |
2000年 | 83篇 |
1999年 | 84篇 |
1998年 | 98篇 |
1997年 | 92篇 |
1996年 | 92篇 |
1995年 | 79篇 |
1994年 | 56篇 |
1993年 | 69篇 |
1992年 | 50篇 |
1991年 | 77篇 |
1990年 | 61篇 |
1989年 | 108篇 |
1988年 | 77篇 |
1987年 | 75篇 |
1986年 | 65篇 |
1985年 | 57篇 |
1984年 | 39篇 |
1983年 | 32篇 |
1982年 | 44篇 |
1981年 | 26篇 |
1980年 | 20篇 |
1979年 | 23篇 |
1978年 | 24篇 |
1977年 | 28篇 |
1976年 | 46篇 |
1975年 | 25篇 |
1971年 | 21篇 |
1969年 | 17篇 |
排序方式: 共有3271条查询结果,搜索用时 15 毫秒
1.
2.
Scott W. Powers Kelly C. Byars Monica J. Mitchell Susana R. Patton Teresa Schindler Margaret H. Zeller 《Children's Health Care》2003,32(4):297-311
This pilot study examined a behavioral treatment to increase calorie intake in toddlers with cystic fibrosis. Eight toddlers were randomly assigned to behavioral plus nutrition (BEH) or nutrition intervention (NTR) conditions. Calorie intake and weight were measured at pre- and posttreatment. The BEH group showed a trend for changes in calorie intake pre- to posttreatment (p = .07; 40% increase). Results for the BEH and NTR groups did not differ significantly. Most participants achieved weight gains consistent with normal growth. Seventy-five percent had not shown this pattern during the year prior to intervention. These results support the feasibility and potential for behavioral interventions in this age group. 相似文献
3.
4.
Adverse reaction to intravenous gadoteridol 总被引:1,自引:0,他引:1
5.
6.
7.
K. L. Womer H.-U. Meier-Kriesche P. R. Patton K. Dibadj C. M. Bucci D. Foley S. Fujita B. P. Croker R. J. Howard T. R. Srinivas B. Kaplan 《American journal of transplantation》2006,6(1):209-213
BK virus nephropathy (BKVN) is now recognized as a major cause of renal allograft loss. Recent reports suggest that retransplantation in patients with graft loss due to BKVN is safe after return to dialysis. Since early transplantation is associated with improved outcomes, it would be advantageous if this procedure could be performed prior to ultimate graft loss. However, little data are available regarding the safety of this approach during active viremia. In this report, we describe successful preemptive retransplantation with simultaneous allograft nephrectomy in two patients with active BKVN and viremia at the time of surgery. With 21- and 12-month follow-up, respectively, both patients have stable allograft function and no evidence for active viral replication. We conclude that preemptive retransplantation can be considered in patients with failing allografts due to BKVN. 相似文献
8.
William G. Kohn Jonathan A. Ship Jane C. Atkinson Lauren L. Patton Philip C. Fox 《Journal of oral pathology & medicine》1992,21(2):70-74
Sequential salivary gland scintigraphy with 99mTc-technetium pertechnetate (Tc-99) is a safe, minimally invasive test for study of major salivary glands. However, its relationship to salivary function has not been investigated in detail. We have investigated the relationship between major salivary gland flow rates and Tc-99 scans and developed a new rating scale using scans of a control group with normal salivary function. Salivary flow rates and Tc-99 scans were obtained from healthy, non-medicated subjects (n = 33) and from xerostomic patients (n = 22). There were significant differences between the groups for salivary flow rates and Tc-99 ratings. Significant correlations were found between salivary flow rates and Tc-99 ratings in the control and xerostomic groups. The Tc-99 rating scale proved reliable in assessing salivary dysfunction, and showed a high inter-examiner correlation. These results demonstrate the usefulness of salivary gland scintigraphy in assessing major salivary gland flow rates and the utility of a new rating scale. 相似文献
9.
10.
Intestinal schistosomiasis japonica: CT-pathologic correlation 总被引:1,自引:0,他引:1
Lee RC; Chiang JH; Chou YH; Rubesin SE; Wu HP; Jeng WC; Hsu CC; Tiu CM; Chang T 《Radiology》1994,193(2):539