全文获取类型
收费全文 | 38696篇 |
免费 | 2203篇 |
国内免费 | 347篇 |
专业分类
耳鼻咽喉 | 340篇 |
儿科学 | 787篇 |
妇产科学 | 1097篇 |
基础医学 | 4416篇 |
口腔科学 | 935篇 |
临床医学 | 3436篇 |
内科学 | 10391篇 |
皮肤病学 | 776篇 |
神经病学 | 3284篇 |
特种医学 | 1335篇 |
外国民族医学 | 3篇 |
外科学 | 6264篇 |
综合类 | 330篇 |
一般理论 | 9篇 |
预防医学 | 1599篇 |
眼科学 | 461篇 |
药学 | 2080篇 |
1篇 | |
中国医学 | 98篇 |
肿瘤学 | 3604篇 |
出版年
2023年 | 278篇 |
2022年 | 467篇 |
2021年 | 1116篇 |
2020年 | 682篇 |
2019年 | 905篇 |
2018年 | 1083篇 |
2017年 | 813篇 |
2016年 | 991篇 |
2015年 | 1100篇 |
2014年 | 1405篇 |
2013年 | 1869篇 |
2012年 | 2966篇 |
2011年 | 2927篇 |
2010年 | 1688篇 |
2009年 | 1479篇 |
2008年 | 2587篇 |
2007年 | 2559篇 |
2006年 | 2284篇 |
2005年 | 2303篇 |
2004年 | 2144篇 |
2003年 | 1882篇 |
2002年 | 1770篇 |
2001年 | 527篇 |
2000年 | 488篇 |
1999年 | 531篇 |
1998年 | 336篇 |
1997年 | 320篇 |
1996年 | 240篇 |
1995年 | 254篇 |
1994年 | 241篇 |
1993年 | 214篇 |
1992年 | 279篇 |
1991年 | 248篇 |
1990年 | 238篇 |
1989年 | 241篇 |
1988年 | 150篇 |
1987年 | 183篇 |
1986年 | 144篇 |
1985年 | 138篇 |
1984年 | 141篇 |
1983年 | 100篇 |
1982年 | 86篇 |
1981年 | 74篇 |
1980年 | 72篇 |
1979年 | 86篇 |
1977年 | 46篇 |
1976年 | 48篇 |
1975年 | 55篇 |
1974年 | 59篇 |
1972年 | 47篇 |
排序方式: 共有10000条查询结果,搜索用时 93 毫秒
991.
Purpose
Cerebrovascular complications following transsphenoidal resection of pituitary tumors are rare and often evaluated and treated with endovascular techniques. We determined the utilization rate and outcomes of endovascular procedures in transsphenoidal pituitary resection patients using an administrative database.Methods
Using the Nationwide Inpatient Sample 2001–2010, patients receiving transsphenoidal resection of benign pituitary tumors were identified. The rate of cerebrovascular complications and utilization of endovascular repair procedures and cerebral angiography were compared between high (≥75 procedures/year) and low volume (<75 procedures/year) centers. Chi squared tests were used to compare categorical variables.Results
70,878 were patients included in this study. ICH/SAH occurred in 0.9 % of patients (652/70,878) and stroke occurred in 0.5 % of patients (327/70,878). Patients treated at high volume centers had significantly lower rates of stroke (0.5 % vs. 1.0 %, P = 0.04), and ICH/SAH (0.5 vs. 1.0 %, P = 0.05) when compared to patients treated at low-volume centers. Overall, 531 patients (0.7 %) received post-operative angiography and 83 patients (0.1 %) received endovascular repair procedures. High volume center patients underwent angiography in 0.4 % of cases compared to 0.9 % for low volume center patients (P = 0.02). There was no significant difference in endovascular repair procedure rates at high and low volume centers (0.1 vs. 0.2 %, P = 0.37).Conclusions
Cerebrovascular surgical complications requiring cerebral angiography and endovascular repair are rare among transsphenoidal pituitary resection patients. These occur with higher frequency at low volume centers and are associated with high mortality rates. 相似文献992.
993.
Fa‐Po Chung Ying‐Chieh Liao Yenn‐Jiang Lin Shih‐Lin Chang Li‐Wei Lo Yu‐Feng Hu Ta‐Chuan Tuan Tze‐Fan Chao Jo‐Nan Liao Chin‐Yu Lin Ting‐Yung Chang Jennifer Jeanne B. Vicera Chye‐Gen Chin Cheng‐I Wu Chih‐Min Liu Po‐Tseng Lee Ting‐Chun Huang Isaiah C. Lugtu Shih‐Ann Chen 《Journal of cardiovascular electrophysiology》2020,31(1):9-17
994.
Giuseppe Stabile Antoine Lepillier Ermenegildo De Ruvo Marco Scaglione Matteo Anselmino Frederic Sebag Domenico Pecora Mark Gallagher Mariano Rillo Graziana Viola Luca Rossi Valerio De Santis Maurizio Landolina Antonello Castro Massimo Grimaldi Nicolas Badenco Maurizio Del Greco Antonio De Simone Ennio Pisan Salim Abbey Filippo Lamberti Antonio Pani Giulio Zucchelli Giuseppe Sgarito Daniela Dugo Emanuele Bertaglia Teresa Strisciuglio Francesco Solimene 《Journal of cardiovascular electrophysiology》2020,31(7):1694-1701
995.
Jennifer Jeanne B. Vicera Yenn‐Jiang Lin Po‐Tseng Lee Shih‐Lin Chang Li‐Wei Lo Yu‐Feng Hu Fa‐Po Chung Chin‐Yu Lin Ting‐Yung Chang Ta‐Chuan Tuan Tze‐Fan Chao Jo‐Nan Liao Cheng‐I Wu Chih‐Min Liu Chung‐Hsing Lin Chieh‐Mao Chuang Chun‐Chao Chen Chye Gen Chin Shin‐Huei Liu Wen‐Han Cheng Le Phat Tai Sung‐Hao Huang Ching‐Yao Chou Isaiah Lugtu Ching‐Han Liu Shih‐Ann Chen 《Journal of cardiovascular electrophysiology》2020,31(6):1436-1447
996.
Tardivo Valentina Penner Federica Garbossa Diego Di Perna Giuseppe Pacca Paolo Salvati Luca Altieri Roberto Grottoli Silvia Zenga Francesco 《Pituitary》2020,23(2):92-102
Pituitary - Along with increased life expectancy and improvements in the diagnostic tools and techniques, the number of elderly patients with symptomatic pituitary tumors being evaluated for... 相似文献
997.
Lizzul Laura Lombardi Giuseppe Barbot Mattia Ceccato Filippo Gardiman Marina Paola Regazzo Daniela Bellu Luisa Mazza Elena Losa Marco Scaroni Carla 《Pituitary》2020,23(4):359-366
Pituitary - Aggressive pituitary adenomas (APAs) and pituitary carcinomas (PCs) are challenging for their invasive nature, resistance to treatment and recurrences. Temozolomide (TMZ) is... 相似文献
998.
Ovidiu Chioncel John Parissis Alexandre Mebazaa Holger Thiele Steffen Desch Johann Bauersachs Veli‐Pekka Harjola Elena‐Laura Antohi Mattia Arrigo Tuvia B. Gal Jelena Celutkiene Sean P. Collins Daniel DeBacker Vlad A. Iliescu Ewa Jankowska Tiny Jaarsma Kalliopi Keramida Mitja Lainscak Lars H Lund Alexander R. Lyon Josep Masip Marco Metra Oscar Miro Andrea Mortara Christian Mueller Wilfried Mullens Maria Nikolaou Massimo Piepoli Susana Price Giuseppe Rosano Antoine Vieillard‐Baron Jean M. Weinstein Stefan D. Anker Gerasimos Filippatos Frank Ruschitzka Andrew J.S. Coats Petar Seferovic 《European journal of heart failure》2020,22(8):1315-1341
Cardiogenic shock (CS) is a complex multifactorial clinical syndrome with extremely high mortality, developing as a continuum, and progressing from the initial insult (underlying cause) to the subsequent occurrence of organ failure and death. There is a large spectrum of CS presentations resulting from the interaction between an acute cardiac insult and a patient's underlying cardiac and overall medical condition. Phenotyping patients with CS may have clinical impact on management because classification would support initiation of appropriate therapies. CS management should consider appropriate organization of the health care services, and therapies must be given to the appropriately selected patients, in a timely manner, whilst avoiding iatrogenic harm. Although several consensus‐driven algorithms have been proposed, CS management remains challenging and substantial investments in research and development have not yielded proof of efficacy and safety for most of the therapies tested, and outcome in this condition remains poor. Future studies should consider the identification of the new pathophysiological targets, and high‐quality translational research should facilitate incorporation of more targeted interventions in clinical research protocols, aimed to improve individual patient outcomes. Designing outcome clinical trials in CS remains particularly challenging in this critical and very costly scenario in cardiology, but information from these trials is imperiously needed to better inform the guidelines and clinical practice. The goal of this review is to summarize the current knowledge concerning the definition, epidemiology, underlying causes, pathophysiology and management of CS based on important lessons from clinical trials and registries, with a focus on improving in‐hospital management. 相似文献
999.
Alessandra Mangia Tivadar Bányai Giuseppe De Bartolomeo Judit Gervain François Habersetzer Jean‐Pierre Mulkay Denis Ouzan Giustino Parruti Nicola Passariello Andre‐Jean Remy Mario Rizzetto Mitchell L. Shiffman Manuela Schmitz Fernando Tatsch Maribel Rodriguez‐Torres 《Liver international》2014,34(7):e217-e228
1000.
Richard B Pollard Jürgen K Rockstroh Giuseppe Pantaleo David M Asmuth Barry Peters Adriano Lazzarin Felipe Garcia Kim Ellefsen Daniel Podzamczer Jan van Lunzen Keikawus Arastéh Dirk Schürmann Bonaventura Clotet W David Hardy Ronald Mitsuyasu Graeme Moyle Andreas Plettenberg Martin Fisher Birger Sørensen 《The Lancet infectious diseases》2014,14(4):291-300