全文获取类型
收费全文 | 1792篇 |
免费 | 107篇 |
国内免费 | 4篇 |
专业分类
耳鼻咽喉 | 17篇 |
儿科学 | 135篇 |
妇产科学 | 75篇 |
基础医学 | 199篇 |
口腔科学 | 64篇 |
临床医学 | 125篇 |
内科学 | 402篇 |
皮肤病学 | 60篇 |
神经病学 | 52篇 |
特种医学 | 32篇 |
外科学 | 190篇 |
综合类 | 21篇 |
一般理论 | 1篇 |
预防医学 | 89篇 |
眼科学 | 144篇 |
药学 | 129篇 |
中国医学 | 4篇 |
肿瘤学 | 164篇 |
出版年
2024年 | 2篇 |
2023年 | 22篇 |
2022年 | 52篇 |
2021年 | 103篇 |
2020年 | 36篇 |
2019年 | 64篇 |
2018年 | 72篇 |
2017年 | 59篇 |
2016年 | 70篇 |
2015年 | 63篇 |
2014年 | 88篇 |
2013年 | 103篇 |
2012年 | 154篇 |
2011年 | 166篇 |
2010年 | 87篇 |
2009年 | 63篇 |
2008年 | 105篇 |
2007年 | 99篇 |
2006年 | 83篇 |
2005年 | 76篇 |
2004年 | 69篇 |
2003年 | 60篇 |
2002年 | 46篇 |
2001年 | 14篇 |
2000年 | 10篇 |
1999年 | 21篇 |
1998年 | 7篇 |
1997年 | 2篇 |
1995年 | 5篇 |
1994年 | 2篇 |
1992年 | 5篇 |
1991年 | 6篇 |
1990年 | 8篇 |
1989年 | 4篇 |
1988年 | 7篇 |
1987年 | 8篇 |
1986年 | 4篇 |
1985年 | 4篇 |
1984年 | 4篇 |
1983年 | 4篇 |
1981年 | 2篇 |
1978年 | 5篇 |
1977年 | 3篇 |
1976年 | 2篇 |
1974年 | 10篇 |
1973年 | 2篇 |
1972年 | 5篇 |
1971年 | 3篇 |
1969年 | 4篇 |
1968年 | 3篇 |
排序方式: 共有1903条查询结果,搜索用时 15 毫秒
91.
Sachdeva M Kaur S Nagpal M Dewan SP 《Indian journal of dermatology, venereology and leprology》2002,68(6):334-337
Five hundred unselected newborn babies delivered in the Department of Obstetrics and Gynaecology, Unit II of SGBT Hospital attached to Government Medical College, Amritsar during April 2000 to October 2000 were examined for cutaneous lesions daily for the first five days after birth. Different cutaneous lesions were seen in 474(94.8%) newborns. The physiological skin changes observed in order of frequency were Epstein pearls in 305(61%), Mongolian spot in 301(60.2%), superficial cutaneous desquamation in 200(40%), icterus in 128(25.6%), milia in 119(23.8%), sebaceous gland hyperplasia in 107(21.4%), occipital alopecia in 94(18.8%), lanugo in 72(14.4%), peripheral cyanosis in 47(9.4%), breast hypertrophy in 29(5.8%) and miniature puberty in 28(5.6%) newborns. Of the transient non-infective skin diseases, erythema toxicum neonatorum was observed most commonly in 105(21%), followed by miliaria rubra in 103(20.6%) and acne neonatorum in 27(5.4%) newborns. The naevi and other developmental defects in the descending order were salmon patch in 69(13.8%), congenital melanocytic noevi in 10(2%), accessory tragi in 3(0.6%), spina bifida in 2(0.4%), hydrocephalus in 1(0.2%) and poliosis in 1(0.2%) newborns. Cradle cap was the only dermatitis observed in 50(10%) newborns. One (0.2%) case each of Harlequin ichthyosis and labial cyst was seen. 相似文献
92.
A study from Nepal showing no correlation between lichen planus and hepatitis B and C viruses 总被引:1,自引:0,他引:1
A total number of 86 cases of Lichen planus (LP) were seen over a period of one and a half years. This constituted 0.58% of 14,833 new dermatological patients seen. Hepatitis B and C viral (HBV & HCV) serology was carried out in 64 patients and 43 age and sex matched controls. In the examined patients, 35 (54.27%) had the skin lesions only. Oral lesions were present in 15 (23.4%) of the patients in addition to skin lesions, while 14 (21.9%) had only oral involvement. Serology for HBsAg and HCV was negative in all types of LP patients and the controls. In Nepal, HBV and HCV seem to be not important in the pathogenesis of LP. 相似文献
93.
T. S Anand Ritu Mittal T. B. Shashidhar R. K. Sharma 《Indian journal of otolaryngology and head and neck surgery》2006,58(4):402-404
Massive vascular malformation involving tongue can cause significant functional impairment. In this report we describe a rare case of extensive venous malformation involving tongue leading to obstructive sleep apnoea, inability to speak, eat, severe discomfort due to exposure induced dryness and ulceration. Multimodality treatment approach comprising of sclerotherapy, electrocautery and radiation therapy was used in this case. 相似文献
94.
Karan Sharma Rajan Sachdeva K. K. Duggal S. K. Kahlon 《Indian journal of otolaryngology and head and neck surgery》2006,58(4):364-367
Hoarseness is a common disorder of voice which indicates abnormality at the level of glottis. We present our study of forty cases of progressive hoarseness of voice who underwent direct laryngoscopy during a period of January 2003 to January 2004 in our hospital. The observations were recorded und the data was evaluated. 相似文献
95.
96.
Psoriasis is a chronic skin disorder that affects approximately 2% of the US and European population. Over the last several years, one of the major focuses in psoriasis research has been the development of biologic therapies for this disease. The aim of these therapies is to provide selective, immunologically directed intervention with fewer side effects than traditional therapies. The goal of this article is to review the progress of the biologic agents which are available, or under investigation for clinical use: infliximab, etanercept, efalizumab, alefacept, and adalimumab. In addition, two other investigational therapies, oral tazarotene and oral pimecrolimus will be discussed. Clinical data for these agents, including the most recent phase II and/or III study results, will be discussed, as well as the most recent safety data. 相似文献
97.
The new paradigm of continuing education in surgery 总被引:5,自引:0,他引:5
Sachdeva AK 《Archives of surgery (Chicago, Ill. : 1960)》2005,140(3):264-269
Concerns regarding the shortcomings of traditional continuing medical education (CME) have led to widespread acceptance of the concept of continuous professional development (CPD). Continuous professional development focuses on the individual learning needs of physicians across the continuum of their professional careers and encompasses a broad range of educational activities. Continuous professional development activities of practicing surgeons should be integrated with the core competency of practice-based learning and improvement (PBLI), which involves a cycle of 4 steps-identifying areas for improvement, engaging in learning, applying new knowledge and skills to practice, and checking for improvement. The effectiveness of CPD and PBLI should be objectively evaluated by assessing their impact on surgeons' learning and performance and on patient care outcomes. A portfolio may be used to document CPD and PBLI activities and can serve as a valuable learning and assessment tool. It should contain information on the personal learning projects pursued by the surgeon. Continuous professional development of the entire surgical team and education of patients and their families need to be considered within the context of the surgeon's CPD efforts to positively affect patient care. Thus, a concept of global 360 degrees education should be embraced. Continuous professional development integrated with PBLI can help surgeons address their specific learning needs and play a pivotal role in surgeons' providing the best care to patients. 相似文献
98.
American Surgical Association Blue Ribbon Committee Report on Surgical Education: 2004 总被引:7,自引:0,他引:7 下载免费PDF全文
99.
Sikora SS Khare R Srikanth G Kumar A Saxena R Kapoor VK 《Digestive surgery》2005,22(6):446-51; discussion 452
BACKGROUND/AIMS: External pancreatic fistula (EPF) is a common sequel to surgical or percutaneous intervention for infective complications of acute severe pancreatitis. The present study was aimed at studying the clinical profile, course and outcome of patients with EPF following surgical or percutaneous management of these infective complications. METHODS: A retrospective analysis of clinical data of patients with EPF following intervention (surgical or percutaneous) for acute severe pancreatitis managed between January 1989 and April 2002 recorded on a prospective database was done. Univariate analysis of various factors (etiology, imaging findings prior to intervention, fistula characteristics and management) that could predict early closure of fistula was performed. RESULTS: Of 210 patients with acute severe pancreatitis, 43 (20%) patients developed EPF (mean age 38 (range 16-78) years, M:F ratio 5:1) following intervention for infected pancreatic necrosis (n=23) and pancreatic abscess (n=20) and constituted the study group. The fistula output was categorized as low (<200 ml), moderate (200-500 ml) and high (>500 ml) in 29 (67%), 11 (26%) and 3 (7%) patients, respectively. Fifteen patients (35%) had morbidity in the form of abscess (n=5), bleeding (n=1), pseudoaneurysm (n=2) and fever with no other focus of infection (n=7). Spontaneous closure of the fistula occurred in 38 (88%) patients. The average time to closure of fistula was 109+/- 26 (median 70) days. Fistula closed after intervention in 5 patients (2 after endoscopic papillotomy, 1 after fistulojejunostomy and 2 after downsizing the drains). Of the 38 patients with spontaneous closure, 9 (24%) patients developed a pseudocyst after a mean interval of 123 days of which 7 underwent surgical drainage of the cyst. Univariate analysis of various factors (etiology, imaging findings prior to intervention, fistula characteristics and management) failed to identify any factors that could predict early closure of fistula. CONCLUSIONS: EPF is a common sequel following intervention in acute severe pancreatitis. The majority of these are low output fistulae and close spontaneously with conservative management. One-fourth of patients with spontaneous closure develop a pseudocyst as a sequel, requiring surgical management. 相似文献
100.