全文获取类型
收费全文 | 10782篇 |
免费 | 715篇 |
国内免费 | 64篇 |
专业分类
耳鼻咽喉 | 62篇 |
儿科学 | 243篇 |
妇产科学 | 283篇 |
基础医学 | 1529篇 |
口腔科学 | 396篇 |
临床医学 | 997篇 |
内科学 | 2205篇 |
皮肤病学 | 193篇 |
神经病学 | 1327篇 |
特种医学 | 321篇 |
外科学 | 1252篇 |
综合类 | 24篇 |
现状与发展 | 1篇 |
一般理论 | 8篇 |
预防医学 | 979篇 |
眼科学 | 121篇 |
药学 | 688篇 |
中国医学 | 49篇 |
肿瘤学 | 883篇 |
出版年
2024年 | 17篇 |
2023年 | 122篇 |
2022年 | 247篇 |
2021年 | 422篇 |
2020年 | 258篇 |
2019年 | 392篇 |
2018年 | 428篇 |
2017年 | 340篇 |
2016年 | 393篇 |
2015年 | 366篇 |
2014年 | 465篇 |
2013年 | 603篇 |
2012年 | 867篇 |
2011年 | 846篇 |
2010年 | 452篇 |
2009年 | 425篇 |
2008年 | 672篇 |
2007年 | 639篇 |
2006年 | 627篇 |
2005年 | 569篇 |
2004年 | 533篇 |
2003年 | 471篇 |
2002年 | 383篇 |
2001年 | 116篇 |
2000年 | 83篇 |
1999年 | 109篇 |
1998年 | 58篇 |
1997年 | 70篇 |
1996年 | 39篇 |
1995年 | 34篇 |
1994年 | 31篇 |
1993年 | 24篇 |
1992年 | 51篇 |
1991年 | 64篇 |
1990年 | 33篇 |
1989年 | 41篇 |
1988年 | 34篇 |
1987年 | 33篇 |
1986年 | 27篇 |
1985年 | 25篇 |
1984年 | 25篇 |
1983年 | 8篇 |
1982年 | 15篇 |
1981年 | 9篇 |
1980年 | 8篇 |
1979年 | 12篇 |
1977年 | 11篇 |
1974年 | 12篇 |
1973年 | 8篇 |
1971年 | 8篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Cost‐Effectiveness and Cost‐Utility Analysis of Spinal Cord Stimulation in Patients With Failed Back Surgery Syndrome: Results From the PRECISE Study
下载免费PDF全文
![点击此处可从《Neuromodulation》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Furio Zucco MD Roberta Ciampichini MSc Angelo Lavano MD Amedeo Costantini MD Marisa De Rose MD Paolo Poli MD Gianpaolo Fortini MD Laura Demartini MD Enrico De Simone MD Valentino Menardo MD Piero Cisotto MD Mario Meglio MD Luciana Scalone PhD Lorenzo G. Mantovani DSc 《Neuromodulation》2015,18(4):266-276
2.
3.
4.
5.
6.
Giorgio Ciprandi Mara De Amici Simone Negrini Gianluigi Marseglia Maria Angela Tosca 《International immunopharmacology》2009,9(10):1247-1249
Two new T cell subsets may be involved in allergic rhinitis (AR) pathogenesis: Th17 and T regulatory cells, mainly producing IL-17 and TGF-β respectively. Successful Sublingual Immunotherapy (SLIT) induces relevant immunological changes, thus the aim of this study was to evaluate serum IL-17 and TGF-β levels in AR patients treated with SLIT for 2 years. Patients' blood samples were collected before initiating SLIT (baseline), three months after the end of the first pre-seasonal SLIT course, and at the end of the second pre-seasonal course. IL-17 was detectable only in the most severe allergic patients. SLIT significantly induced an increase in serum TGF-β levels. There was moreover a significant relationship between TGF-β and symptom severity and drug use at the end of the study. Therefore, this study provides clinically relevant evidence that two pre-seasonal SLIT courses may significantly affect serum TGF-β levels. 相似文献
7.
Simone Pettigrew Katherine Mizerski Robert Donovan 《Australasian journal on ageing》2004,23(3):142-143
Objective: Generate a list of service guidelines to enable supermarket managers to accommodate the needs of their older customers. Methods: Focus groups and a national telephone survey were conducted with Australian seniors to generate 10 service guidelines for supermarkets. Results: The 10 guidelines produced are considered to be of significant importance by Australian seniors, with some apparent differences in importance and relevance ratings between older and younger seniors, and males and females. Conclusions: Seniors have distinct service preferences when grocery shopping and their needs require special attention in the supermarket environment. In particular, they feel strongly about the quality of staff and equipment with which they come into contact. 相似文献
8.
Christoph R?cken Jutta Ernst Ernst Hund Hartmut Michels Jolanta Perz Wolfgang Saeger Orhan Sezer Simone Spuler Friedrich Willig und Hartmut H.-J. Schmidt 《Medizinische Klinik》2006,101(10):825-829
Ohne Zusammenfassung 相似文献
9.
The authors studied quality control procedures at human milk banks and nutritional profiles of 909 milk samples (from 195 donors, aged 15 to 45 years) from banked human milk (BHM) in Brasília, Brazil. Number of donations per donor ranged from 1 to > 10 that consisted mostly of mature milk (90.9%) with a mean total energy of 529 +/- 85 kcal/L and a mean total lipid of 22.7 g/L +/- 13.2. Microbiological quality (titrable acidity-Dornic, degrees D) was suitable for infant feeding in 99.2% of samples (< 8 degrees D), ranging from 2 degrees D to 8 degrees D (mean 4.8 +/- 1.4 degrees D). Most BHM (98.1%) samples were dispensed to inpatient infants (1-7 days) diagnosed with respiratory distress (30.1%), prematurity (20.7%), metabolic distress (16.0%), jaundice (14.4%), bacterial infection (6.0%), pneumonia (3.3%), congenital cardiac distress (2.2%), or other conditions (6.2%). Well-motivated mothers and trained staff are serving and sustaining an important life-saving network with long-lasting impact on public health. 相似文献
10.
Retroperitoneal leiomyosarcoma mimicking acute appendicitis: laparoscopic management. 总被引:2,自引:0,他引:2
Ferdinando Agresta Paolo De Simone Ivan Michelet Natalino Bedin 《JSLS, Journal of the Society of Laparoendoscopic Surgeons》2003,7(2):177-179
BACKGROUND: Retroperitoneal leiomyosarcomas (RLMS) are a challenging clinical entity. The vast majority of patients are operated on when tumors are advanced. We report herein a case of RLMS, mimicking acute appendiceal disease and treated successfully via laparoscopy. METHODS: A 37-year-old woman, para 1, was admitted to our department for right lower quadrant abdominal pain, fever, and leukocytosis. She had no changes in gastrointestinal and urologic function. A physical examination revealed the presence of abdominal guarding, rebound, and a tender mass in the right lower quadrant. The abdominal ultrasound showed an inhomogeneous ovoid mass (6 cm in diameter) located below the cecum, with no definite margins, and consistent with an appendiceal abscess. The patient was referred for laparoscopy. The procedure was performed with the aid of 3 ports: a 12-mm trocar in the umbilicus (open technique), a 10-mm trocar in the left iliac fossa, and a 5-mm one in the supra-pubic space. On inspection of the abdominal cavity, a retroperitoneal 6-cm mass was immediately found below the cecum and the appendix. Neither intraperitoneal seeding nor suspected lymph nodes were present. After dissection of the parietal peritoneum, the mass appeared to be encapsulated and well demarcated from all surrounding structures. It was eventually dissected and removed via a plastic bag. A standard appendectomy was also performed. The postoperative course was uneventful, and the patient was discharged on the 3rd day. The histology analysis of the resected specimen showed a totally excised G2 leiomyosarcoma. The appendix had no signs of inflammation. Postoperatively, the patient underwent a total-body CT-scan, which had no signs of residual or distant disease. No adjuvant therapy was necessary. At an 18-month follow-up, the patient was doing well and was disease free. CONCLUSION: Surgery represents the main therapeutic option for resectable RLMS. Laparoscopy is a useful diagnostic tool that allows safe resection of incidentally discovered, small and well encapsulated RLMS. 相似文献