全文获取类型
收费全文 | 11224篇 |
免费 | 512篇 |
国内免费 | 77篇 |
专业分类
耳鼻咽喉 | 258篇 |
儿科学 | 480篇 |
妇产科学 | 385篇 |
基础医学 | 1009篇 |
口腔科学 | 406篇 |
临床医学 | 926篇 |
内科学 | 2638篇 |
皮肤病学 | 185篇 |
神经病学 | 679篇 |
特种医学 | 503篇 |
外科学 | 2253篇 |
综合类 | 254篇 |
一般理论 | 3篇 |
预防医学 | 451篇 |
眼科学 | 245篇 |
药学 | 617篇 |
中国医学 | 36篇 |
肿瘤学 | 485篇 |
出版年
2024年 | 7篇 |
2023年 | 107篇 |
2022年 | 228篇 |
2021年 | 390篇 |
2020年 | 202篇 |
2019年 | 274篇 |
2018年 | 322篇 |
2017年 | 236篇 |
2016年 | 366篇 |
2015年 | 423篇 |
2014年 | 528篇 |
2013年 | 609篇 |
2012年 | 774篇 |
2011年 | 779篇 |
2010年 | 467篇 |
2009年 | 409篇 |
2008年 | 769篇 |
2007年 | 868篇 |
2006年 | 849篇 |
2005年 | 779篇 |
2004年 | 663篇 |
2003年 | 538篇 |
2002年 | 477篇 |
2001年 | 92篇 |
2000年 | 81篇 |
1999年 | 66篇 |
1998年 | 61篇 |
1997年 | 41篇 |
1996年 | 51篇 |
1995年 | 29篇 |
1994年 | 21篇 |
1993年 | 22篇 |
1992年 | 23篇 |
1991年 | 20篇 |
1990年 | 24篇 |
1989年 | 31篇 |
1988年 | 20篇 |
1987年 | 19篇 |
1986年 | 18篇 |
1985年 | 18篇 |
1984年 | 8篇 |
1983年 | 11篇 |
1982年 | 6篇 |
1980年 | 6篇 |
1979年 | 7篇 |
1978年 | 8篇 |
1974年 | 5篇 |
1973年 | 9篇 |
1972年 | 7篇 |
1971年 | 8篇 |
排序方式: 共有10000条查询结果,搜索用时 16 毫秒
81.
82.
Segmental myoclonus is described as the involuntary contractions of contiguous muscles innerved by the brain stem or by spinal cord. The underlying causes of segmental myoclonus in children are demyelinating diseases and intrinsic tumors. Here, we report a case who was presented with segmental myoclonus on his left arm and later diagnosed as atypical monosymptomatic presentation of acute disseminated encephalomyelitis (ADEM). The case represents the first in the literature in which ADEM is considered as the possible cause of segmental myoclonus. Our findings demonstrate that: (i) in focal movement disorders such as segmental myoclonus, a careful neuroradiological examination of the neuroanatomical region for the possible presence of organic lesions might be rewarding, (ii) ADEM might be one of the potentially reversible causes of myoclonus. 相似文献
83.
Mohammad Saleem Vaqar Mustafa Adhami Nihal Ahmad Sanjay Gupta Hasan Mukhtar 《Clinical cancer research》2005,11(1):147-153
PURPOSE: We recently showed that metastasis-promoting Mts1 gene (S100A4) and protein is overexpressed during progression of prostate cancer in humans. The purpose of this study was to assess the expression of S100A4 during autochthonous prostate cancer progression in transgenic adenocarcinoma of the mouse prostate (TRAMP) model. Because oral consumption of green tea polyphenols (GTP) has been shown to inhibit metastasis and prostate cancer in TRAMP, we further assessed the significance of S100A4 during chemoprevention regimen. EXPERIMENTAL DESIGN: Male TRAMP mice 8 weeks of age were equally divided into two groups. A freshly prepared 0.1% GTP solution in tap water was supplied thrice a week to experimental animals as the sole source of drinking fluid for 24 weeks, whereas the control group of animals received the same tap water throughout the experiment. The animals were sacrificed at 0, 8, 16, and 24 weeks of GTP feeding and were analyzed for S100A4 and E-cadherin. Additional untreated and treated nontransgenic controls were also included in the study. RESULTS: With the progression of age and prostate cancer growth in TRAMP mice, an increase in the expression of S100A4 at mRNA and protein level in dorsolateral prostate, but not in nontransgenic mice, occurred. GTP feeding to TRAMP mice resulted in marked inhibition of prostate cancer progression, which was associated with reduction of S100A4 and restoration of E-cadherin. CONCLUSIONS: S100A4 represents a promising marker for prostate cancer progression and could be employed as a biomarker in chemoprevention regimens. 相似文献
84.
Ugur Selek Mustafa Cengiz Gokhan Ozyigit Ferah Yildiz Ibtisam Lale Atahan 《Radiotherapy and oncology》2005,76(1):107-8; author reply 108
85.
86.
Effect of water extract of Turkish propolis on tuberculosis infection in guinea-pigs. 总被引:2,自引:0,他引:2
Zeki Yildirim Süleyman Hacievliyagil Nurettin Onur Kutlu Nasuhi Engin Aydin Mine Kurkcuoglu Mustafa Iraz Riza Durmaz 《Pharmacological research》2004,49(3):287-292
Mycobacterium tuberculosis (H(37)R(v))-infected guinea-pig model was used to investigate the effect of water extract of propolis (WEP). After subcutaneous inoculation of tubercle bacilli, each animal received oral WEP (n=9), isoniazid (n=5) or saline (n=6) as placebo and were sacrificed 30 days later. Formation of necrosis was less prominent in the group treated with WEP, but was not statistically significant (P>0.05). The granuloma formation in the same group was more prominent than the placebo and isoniazid groups; however, this finding failed to reach statistical significance by the Kruskal-Wallis test (P>0.05). These findings suggest that Turkish WEP may have a limited effect on the development of tuberculosis infection in this guinea-pig model. 相似文献
87.
Zuhal Aydan Saglam Baris Demir Esra Hayriye Ataoglu Mustafa Yenigun Levent Umit Temiz Tayyibe Saler 《Zeitschrift fur Gesundheitswissenschaften》2012,20(1):59-63
Aim
Acute poisoning is one of the major topics in emergency medicine practices. Despite the recent developments in toxicology, technological advances and changing lifestyles reveal new factors, and poisoning cases remain to be a problem. All poisonings should be considered serious and independent from their clinical presentation at the time of admission. Identifying the cause and prompt initiation of treatment is life-saving. Causes of poisoning vary between countries and different regions of the same country. In the present study, cases admitted to the Emergency Department of Internal Medicine at Haseki Training and Research Hospital were evaluated and causes of acute poisoning were investigated. 相似文献88.
89.
Hulda R Ozakpinar Ali T Tellioglu Tolga Eryilmaz Mustafa Durgun Emre Inozu Fatih Oktem 《International wound journal》2013,10(6):661-665
Extensive volar injuries are common and devastating because of the long‐term adhesion potency. The gliding effect of the adipose tissue is essential in preventing tendon adhesions after injury. In this study, we present the results of performing adipofascial flaps for the reconstruction of soft tissue defects following wrist trauma. The study included 15 patients. Adipofascial flaps were performed for immediate coverage of the tissue defect in 2 patients and for late adhesion‐related problems in 13 patients. Flap dimensions varied from 8 × 14 to 8 × 20 cm. All but one of the flaps and skin grafts survived uneventfully. None of the patients, whether immediate or late, required another operation to address further adhesion problems. Since adipofascial flaps provide a gliding surface, they are a good choice for immediate coverage of soft tissue defects in the wrist that are not suitable for skin grafting alone as well as for late adhesion‐related problems. 相似文献
90.