全文获取类型
收费全文 | 1989篇 |
免费 | 74篇 |
国内免费 | 26篇 |
专业分类
耳鼻咽喉 | 9篇 |
儿科学 | 98篇 |
妇产科学 | 23篇 |
基础医学 | 253篇 |
口腔科学 | 25篇 |
临床医学 | 165篇 |
内科学 | 433篇 |
皮肤病学 | 31篇 |
神经病学 | 97篇 |
特种医学 | 307篇 |
外科学 | 205篇 |
综合类 | 9篇 |
预防医学 | 52篇 |
眼科学 | 15篇 |
药学 | 224篇 |
中国医学 | 24篇 |
肿瘤学 | 119篇 |
出版年
2023年 | 7篇 |
2022年 | 16篇 |
2021年 | 62篇 |
2020年 | 24篇 |
2019年 | 29篇 |
2018年 | 50篇 |
2017年 | 52篇 |
2016年 | 47篇 |
2015年 | 99篇 |
2014年 | 116篇 |
2013年 | 113篇 |
2012年 | 142篇 |
2011年 | 156篇 |
2010年 | 110篇 |
2009年 | 87篇 |
2008年 | 85篇 |
2007年 | 85篇 |
2006年 | 61篇 |
2005年 | 82篇 |
2004年 | 60篇 |
2003年 | 57篇 |
2002年 | 61篇 |
2001年 | 40篇 |
2000年 | 39篇 |
1999年 | 28篇 |
1998年 | 42篇 |
1997年 | 29篇 |
1996年 | 29篇 |
1995年 | 31篇 |
1994年 | 27篇 |
1993年 | 19篇 |
1992年 | 10篇 |
1991年 | 7篇 |
1990年 | 12篇 |
1989年 | 17篇 |
1988年 | 18篇 |
1987年 | 15篇 |
1986年 | 9篇 |
1985年 | 17篇 |
1984年 | 8篇 |
1983年 | 9篇 |
1982年 | 21篇 |
1981年 | 12篇 |
1980年 | 10篇 |
1978年 | 4篇 |
1977年 | 8篇 |
1976年 | 14篇 |
1975年 | 8篇 |
1973年 | 2篇 |
1969年 | 1篇 |
排序方式: 共有2089条查询结果,搜索用时 15 毫秒
1.
2.
To Wong Betty Yuen-Ting Lau Ho-Leung Mak Man-Wah Pang Cecilia Cheon Shing-Kai Yip 《International urogynecology journal》2006,17(6):593-597
A territory-wide telephone survey was conducted in Hong Kong to assess the prevalence, knowledge, and treatment-seeking behaviour of Chinese women with urinary incontinence, using validated Chinese version of Urogenital Distress Inventory (UDI-6) and Incontinence Impact Questionnaire (IIQ-7). Women, 540, aged between 17 to 77 years were interviewed. Of the respondents, 40.8% reported stress urinary incontinence, 20.4% had urge incontinence and 15.9% had mixed incontinence. Among these, 16.0% reported quality of life impairment; 9.3% felt frustrated with low morale, and 15.2% had nervous and anxiety problems. However, as many as 78.3% of the respondents did not know that stress urinary incontinence is a disease entity, and 60.6% thought that leakage of urine was a normal aging process. For those respondents having stress urinary incontinence, the first treatment of choice was physiotherapy. The second choice was medication, and surgical treatment was the last option. Respondents with stress urinary incontinence showed higher education level. 相似文献
3.
Acute appendicitis: CT and US correlation in 100 patients 总被引:19,自引:1,他引:18
4.
Perforated colorectal neoplasms: correlation of clinical, contrast enema, and CT examinations 总被引:2,自引:0,他引:2
Hulnick DH; Megibow AJ; Balthazar EJ; Gordon RB; Surapenini R; Bosniak MA 《Radiology》1987,164(3):611-615
Results of clinical, contrast enema (CE), and computed tomographic (CT) examinations in 39 patients with perforated colorectal neoplasms were retrospectively reviewed. Twenty patients were toxemic at initial presentation, but in only four patients was the diagnosis of perforated colorectal neoplasm initially suspected clinically. CE study was performed in 22 patients and enabled the diagnosis of perforated neoplasm in 11 cases, neoplasm alone in eight, and neither neoplasm nor perforation in three. CT was performed in 38 patients and enabled the diagnosis of perforated neoplasm in 36; pericolic phlegmon but no mass lesion was evident in two. In 16 patients, CT also demonstrated metastatic disease. Because of its reliability in establishing the diagnosis and staging the extent of the inflammatory and neoplastic disease, CT is indicated in cases of suspected or proved perforated colorectal neoplasm and in cases in which CE study findings are indeterminate or suggestive of perforated neoplasm. 相似文献
5.
6.
Sung-Jae Kim M.D. In-Seop Park M.D. Yong-Min Cheon M.D. Sang-Wook Ryu M.D. 《Arthroscopy》2004,20(10):481-1094
Recently, attention has been given to the double-bundle technique for treating the posterior cruciate ligament (PCL)-deficient knee. We present an arthroscopic PCL reconstruction using a double-bundle technique with 3-stranded tibialis posterior (TP) allograft that has not been described before. The anterolateral bundle of the PCL is reconstructed using 2-stranded TP allograft and the posteromedial bundle using 1-stranded TP allograft. Three-stranded TP allograft will be an alternative graft choice for PCL reconstruction. 相似文献
7.
8.
Steenbergen EJ; Verhagen OJ; van Leeuwen EF; van den Berg H; von dem Borne AE; van der Schoot CE 《Blood》1995,86(2):692-702
Crosslineage T-cell receptor delta (TCR delta) rearrangements are widely used as tumor markers for the follow up of minimal residual disease in childhood B-precursor acute lymphoblastic leukemia (ALL) by polymerase chain reaction (PCR). The major drawback of this approach is the risk of false-negative results due to clonal evolution. We investigated the stability of V delta 2D delta 3 rearrangements in a group of 56 childhood B-precursor ALL patients by PCR and Southern blot analysis. At the PCR level, V delta 2D delta 3-to-J alpha rearranged subclones (one pathway for secondary TCR delta recombination) were demonstrated in 85.2% of V delta 2D delta 3-positive patients tested, which showed that small subclones are present in the large majority of patients despite apparently monoclonal TCR delta Southern blot patterns. Sequence analysis of V delta 2D delta 3J alpha rearrangements showed a biased J alpha gene usage, with HAPO5 and J alpha F in 26 of 32 and 6 of 32 clones, respectively. Comparison of V delta 2D delta 3 rearrangement status between diagnosis and first relapse showed differences in seven of eight patients studied. In contrast, from first relapse onward, no clonal changes were observed in six patients studied. To investigate the occurrence of crosslineage TCR delta rearrangements in normal B and T cells, fluorescence-activated cell sorter-sorted peripheral blood CD19+/CD3- and CD19-/CD3+ cell populations from three healthy donors were analyzed. V delta 2D delta 3 rearrangements were detected at low frequencies in both B and T cells, which suggests that V delta 2-to-D delta 3 joining also occurs during normal B-cell differentiation. A model for crosslineage TCR delta rearrangements in B-precursor ALL is deduced that explains the observed clonal changes between diagnosis and relapse and is compatible with multistep leukemogenesis of B-precursor ALL. 相似文献
9.
10.
Kyung Cheon Kim Kwang Jin Rhee Hyun Dae Shin Young Mo Kim 《Knee surgery, sports traumatology, arthroscopy》2007,15(12):1478-1481
Calcific tendinitis is a common condition with characteristic clinical and radiological findings. Although we do not know
which condition initiated the pathologic cascade, we present a rare case of calcific tendinitis of the long head of the biceps
brachii at its origin, associated with a SLAP lesion. The calcium deposit was removed and the SLAP lesion was repaired with
a suture anchor arthroscopically. 相似文献