全文获取类型
收费全文 | 8064篇 |
免费 | 552篇 |
国内免费 | 62篇 |
专业分类
耳鼻咽喉 | 40篇 |
儿科学 | 185篇 |
妇产科学 | 182篇 |
基础医学 | 879篇 |
口腔科学 | 135篇 |
临床医学 | 1001篇 |
内科学 | 1448篇 |
皮肤病学 | 70篇 |
神经病学 | 872篇 |
特种医学 | 264篇 |
外科学 | 810篇 |
综合类 | 173篇 |
一般理论 | 11篇 |
预防医学 | 1064篇 |
眼科学 | 137篇 |
药学 | 822篇 |
中国医学 | 9篇 |
肿瘤学 | 576篇 |
出版年
2023年 | 35篇 |
2022年 | 68篇 |
2021年 | 174篇 |
2020年 | 112篇 |
2019年 | 178篇 |
2018年 | 191篇 |
2017年 | 160篇 |
2016年 | 190篇 |
2015年 | 204篇 |
2014年 | 267篇 |
2013年 | 385篇 |
2012年 | 583篇 |
2011年 | 592篇 |
2010年 | 314篇 |
2009年 | 291篇 |
2008年 | 500篇 |
2007年 | 583篇 |
2006年 | 572篇 |
2005年 | 608篇 |
2004年 | 556篇 |
2003年 | 485篇 |
2002年 | 465篇 |
2001年 | 111篇 |
2000年 | 84篇 |
1999年 | 122篇 |
1998年 | 105篇 |
1997年 | 92篇 |
1996年 | 76篇 |
1995年 | 53篇 |
1994年 | 45篇 |
1993年 | 51篇 |
1992年 | 39篇 |
1991年 | 21篇 |
1990年 | 24篇 |
1989年 | 17篇 |
1988年 | 25篇 |
1987年 | 26篇 |
1986年 | 24篇 |
1985年 | 26篇 |
1984年 | 27篇 |
1983年 | 27篇 |
1982年 | 22篇 |
1981年 | 20篇 |
1980年 | 14篇 |
1979年 | 13篇 |
1978年 | 11篇 |
1977年 | 11篇 |
1976年 | 9篇 |
1975年 | 10篇 |
1973年 | 6篇 |
排序方式: 共有8678条查询结果,搜索用时 31 毫秒
91.
92.
BACKGROUND: Obesity is associated with metabolic disorders and cardiovascular diseases. This study investigated the relationship between overweight and obese status and the incidence of type 2 diabetes, hypertension, hyperlipidemia and hyperuricemia. METHODS: This prospective cohort study comprised 1749 hospital employees who received baseline health check-ups in 1993. Data from the 1027 participants (832 women, 195 men; mean age, 36 +/- 7 years) who repeated check-ups in 2003 were used in the analysis. Relative risks (RRs) for development of metabolic disorders during follow-up associated with different body mass index (BMI) categories at baseline as defined by Asia-Pacific recommendations and the Department of Health in Taiwan were calculated after adjustment for covariates. RESULTS: The prevalence of overweight and obesity at baseline check-up were 17.6% and 14.5%, respectively. Obese subjects with baseline BMI >or= 25 kg/m2 had a significant multivariate-adjusted RR of 2.7 for hypertension, 14.8 for type 2 diabetes, 3.2 for hypertriglyceridemia, and 2.8 for hyperuricemia, compared to subjects with baseline BMI < 23.0 kg/m2. RR for diabetes was higher in women than in men, but RR for hypertriglyceridemia was higher in men. The risks of hypertension and hyperuricemia significantly increased for subjects with baseline BMI >or= 23 kg/m2, while RRs for type 2 diabetes increased significantly for baseline BMI >or= 24 kg/m2 and hypertriglyceridemia increased for baseline BMI >or= 25 kg/m2. The risks attributable to obesity (baseline BMI >or= 25 kg/m2) were 23.0% for hypertension, 70.8% for diabetes, 27.9% for hypertriglyceridemia, and 24.1% for hyperuricemia. CONCLUSION: This study revealed that a high prevalence of overweight and obesity was associated with significantly increased risk of development of type 2 diabetes, hypertension, hypertriglyceridemia and hyperuricemia in hospital employees, suggesting the need for programs to improve weight management. 相似文献
93.
94.
J Daniel Pennington Tony Jau Cheng Wang Phuongmai Nguyen Lunching Sun Kheem Bisht DeeDee Smart David Gius 《Drug Resistance Updates》2005,8(5):322-330
Tumor cells undergoing proliferation, de-differentiation and progression depend on a complex set of respiratory pathways to generate the necessary energy. The metabolites from these pathways produce significant oxidative stress and must be buffered to prevent permanent cell damage and cell death. It is now clear that, in order to cope with and defend against the detrimental effects of oxidative stress, a series of redox-sensitive, pro-survival signaling pathways and factors regulate a complex intracellular redox buffering network. This review develops the hypothesis that tumor cells use these redox-sensitive, pro-survival signaling pathways and factors - up-regulated due to increased tumor cell respiration - to evade the damaging and cytotoxic effects of specific anticancer agents. It further suggests that redox-sensitive, signaling factors may be potential novel targets for drug discovery. 相似文献
95.
96.
97.
Edward Chow Alison Ling Lori Davis Tony Panzarella Cyril Danjoux 《Radiotherapy and oncology》2005,75(1):64-69
BACKGROUND AND PURPOSE: To examine the incidence of pain flare following external beam radiotherapy and to determine what constitutes a meaningful change in pain scores in the treatment of bone metastases. PATIENTS AND METHODS: Patients with bone metastases treated with external beam radiotherapy were asked to score their pain on a scale of 0-10 before the treatment (baseline), daily during the treatment and for 10 days after completion of external beam radiation. Pain flare was defined as a two-point increase from baseline pain in the pain scale of 0-10 with no decrease in analgesic intake or a 25% increase in analgesic intake employing daily oral morphine equivalent with no decrease in pain score. To distinguish pain flare from progression of pain, we required the pain score and analgesic intake to return back to baseline levels after the increase/flare. They were also asked to indicate if their pain changed during that time compared to pre-treatment level. The change in pain score was compared with patient perception. RESULTS: Eighty-eight patients were evaluated in this study. There were 49 male and 39 female patients with the median age of 70 years. Twelve of 88 patients (14%) had pain flare on day 1. The overall incidence of pain flare during the study period ranged from 2 to 16%. A total of 797 pain scorings were obtained. Patients perceived an improvement in pain when their self-reported pain score decreased by at least two points. CONCLUSIONS: Our study confirms the occurrence of pain flare following the external beam radiotherapy in the treatment of bone metastases. Further studies are required to predict who are at risk for flare. Appropriate measures can be taken to alleviate the pain flare. The finding in the meaningful change in pain scores supports the investigator-defined partial response used in some clinical trials. 相似文献
98.
99.
Tony Kendrick 《The British journal of general practice》2013,63(615):542-543
100.
Drug Conversation: How to Talk to Your Child About Drugs Owen Bowden‐Jones London: Royal College of Psychiatrists, 2016 ISBN: 978–1–9097265‐7‐4, 168 pp. Paperback. Price: $38.95 (Book available to purchase in Australia from Footprint Books)
下载免费PDF全文
![点击此处可从《Drug and alcohol review》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Tony Trimingham 《Drug and alcohol review》2017,36(4):560-561