全文获取类型
收费全文 | 8852篇 |
免费 | 679篇 |
国内免费 | 14篇 |
专业分类
耳鼻咽喉 | 92篇 |
儿科学 | 289篇 |
妇产科学 | 166篇 |
基础医学 | 1329篇 |
口腔科学 | 132篇 |
临床医学 | 1112篇 |
内科学 | 1684篇 |
皮肤病学 | 173篇 |
神经病学 | 862篇 |
特种医学 | 171篇 |
外科学 | 847篇 |
综合类 | 51篇 |
一般理论 | 8篇 |
预防医学 | 1424篇 |
眼科学 | 111篇 |
药学 | 516篇 |
中国医学 | 4篇 |
肿瘤学 | 574篇 |
出版年
2024年 | 19篇 |
2023年 | 129篇 |
2022年 | 170篇 |
2021年 | 310篇 |
2020年 | 217篇 |
2019年 | 326篇 |
2018年 | 301篇 |
2017年 | 282篇 |
2016年 | 293篇 |
2015年 | 321篇 |
2014年 | 399篇 |
2013年 | 529篇 |
2012年 | 825篇 |
2011年 | 811篇 |
2010年 | 432篇 |
2009年 | 404篇 |
2008年 | 654篇 |
2007年 | 625篇 |
2006年 | 568篇 |
2005年 | 515篇 |
2004年 | 414篇 |
2003年 | 343篇 |
2002年 | 292篇 |
2001年 | 34篇 |
2000年 | 32篇 |
1999年 | 38篇 |
1998年 | 31篇 |
1997年 | 32篇 |
1996年 | 31篇 |
1995年 | 30篇 |
1994年 | 29篇 |
1993年 | 22篇 |
1992年 | 9篇 |
1991年 | 10篇 |
1990年 | 5篇 |
1989年 | 5篇 |
1988年 | 5篇 |
1987年 | 4篇 |
1986年 | 5篇 |
1985年 | 6篇 |
1984年 | 1篇 |
1983年 | 11篇 |
1982年 | 10篇 |
1981年 | 6篇 |
1980年 | 5篇 |
1978年 | 2篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1928年 | 1篇 |
排序方式: 共有9545条查询结果,搜索用时 0 毫秒
91.
92.
Sergey Motov Reuben Strayer Bryan D. Hayes Mark Reiter Steven Rosenbaum Melanie Richman Zachary Repanshek Scott Taylor Benjamin Friedman Gary Vilke Daniel Lasoff 《The Journal of emergency medicine》2018,54(5):731-736
Background
Pain is one of the most common reasons patients present to the emergency department (ED). Emergency physicians should be aware of the numerous opioid and nonopioid alternatives available for the treatment of pain.Objectives
To provide expert consensus guidelines for the safe and effective treatment of acute pain in the ED.Methods
Multiple independent literature searches using PubMed were performed regarding treatment of acute pain. A multidisciplinary panel of experts in Pharmacology and Emergency Medicine reviewed and discussed the literature to develop consensus guidelines.Recommendations
The guidelines provide resources for the safe use of opioids in the ED as well as pharmacological and nonpharmacological alternatives to opioid analgesia. Care should be tailored to the patient based on their specific acute painful condition and underlying risk factors and comorbidities.Conclusions
Analgesia in the ED should be provided in the most safe and judicious manner, with the goals of relieving acute pain while decreasing the risk of complications and opioid dependence. 相似文献93.
Christina A. White Marshall R. Jones Melanie K. Kuester Kelly L. Myers Barbara A. Schnarr 《Hospital pharmacy》2015,50(5):370-375
Purpose:
To establish a cost-effective centralized pharmacy call center to serve the patients of Veterans Integrated Service Network (VISN) 11 that would meet established performance metrics.Methods:
A pilot project began in August 2011 with the Indianapolis VA Medical Center (VAMC) and the Health Resource Center (HRC) in Topeka, Kansas. The Indianapolis VAMC used a first-call resolution business model consisting of pharmacy technicians receiving tier 1 phone calls that could be escalated to a tier 2 line that consisted of lead technicians and pharmacists, while the HRC utilized general telephone agents that would transfer unresolved calls to the primary facility. Pre- and post-VISN 11 Pharmacy Call Center performance metrics were compared for each of the 7 facilities in the network with the goals being monthly average abandoned call rate less than 5% and average speed to answer less than 30 seconds. Cost per call was also compared.Results:
The average abandoned call rate for the network during the year prior to VISN 11 Pharmacy Call Center implementation (August 2010-July 2011) was 15.66% and decreased to 3% in July 2014. The average abandoned call rate decreased for each individual facility. In fiscal year 2014, the VISN 11 Pharmacy Call Center was operating at a cost of $4.35 per call while providing more services than the HRC, resulting in less workload being transferred back to the individual facilities.Conclusion:
A centralized VISN pharmacy call center is a reasonable alternative to individual facility call centers or the HRC. 相似文献94.
Background:
High-alert medications pose a greater risk of causing significant harm to patients if used in error. The Joint Commission requires that hospitals define institution-specific high-alert medications and implement processes to ensure safe medication use.Method:
Nursing, pharmacy, and prescribers were asked to voluntarily complete a 34-question survey to assess their knowledge, experience, and perceptions regarding high-alert medications in an academic hospital.Results:
The majority of respondents identified the organization’s high-alert medications, the consequences of an error involving a high-alert medication, and the reversal agent. Most of the risk-reduction strategies within the institution were viewed as being effective by respondents. Forty-five percent of the respondents utilized a high-alert medication in the previous 24 hours. Only 14.2% had experienced an error with a high-alert medication in the previous 12 months, with 46% being near misses. The survey found the 5 rights for medication administration were not being utilized consistently. Respondents indicated that work experience or hospital orientation is the preferred learning experience for high-alert medications.Conclusions:
This study assessed all disciplines involved in the medication use process. Perceptions about high-alert medications differ between disciplines. Ongoing discipline-specific education is required to ensure that individuals accept accountability in the medication use process and to close knowledge gaps on high-alert medications and risk-reduction strategies. 相似文献95.
96.
97.
98.
Zuo Yu Zuo Melanie Yalavarthi Srilakshmi Gockman Kelsey Madison Jacqueline A. Shi Hui Woodard Wrenn Lezak Sean P. Lugogo Njira L. Knight Jason S. Kanthi Yogendra 《Journal of thrombosis and thrombolysis》2021,51(2):446-453
Journal of Thrombosis and Thrombolysis - Studies of patients with COVID-19 have demonstrated markedly dysregulated coagulation and a high risk of morbid arterial and venous thrombotic events.... 相似文献
99.
Since the first outbreak of hantavirus pulmonary syndrome (HPS) in 1993, understanding of the vast distribution and potential
impact of hantaviruses has grown. At least 277 cases of HPS have been documented in the United States. The full clinical spectrum
has yet to be elucidated, and one outbreak suggested the possibility of person-to-person transmission. New research has identified
the β-3 integrins as cellular receptors for hantaviruses and has determined the pivotal role of the immune system in pathogenesis.
Rapid diagnosis has been facilitated by a new immunoblot assay to detect Sin Nombre virus infection. Treatment remains primarily
supportive; however, a placebocontrolled trial of ribavirin is ongoing. Extracorporeal membrane oxygenation may be a potential
therapy in severe cases; inhaled nitric oxide needs further study. Vaccines developed against hantaviruses associated with
hemorrhagic fever and renal syndrome might be effective against HPS-associated strains. 相似文献
100.
Aims We explore young children's attitudes toward, beliefs about, and life‐style associations with cigarette smoking using direct and indirect measures. Design, setting and participants Second (n = 100) and fifth grade (n = 141) elementary school students (i.e. 7–8 and 10–11‐year‐olds) were excused from class and individually interviewed. Methods Participants selected pictures in response to the questions: who would like to smoke cigarettes the most and who would like to smoke cigarettes the least? Their picture choices were probed using open‐ended prompts designed to elicit the beliefs and life‐style associations underlying their choices. Survey‐based measures of attitudes and beliefs were also collected. Findings Second graders reported life‐style associations with cigarette smoking that were consistent with those of fifth graders. While their associations with smoking are generally negative, children appear to perceive that others feel that smoking makes them look cool and feel cool and also helps them to fit in. By fifth grade, many children believe that smoking can help to reduce stress and alleviate negative mood states. The presence of a smoker in the household does not appear to affect these associations, suggesting that they may be being shaped by external socialization agents. Conclusion Young children appear to be developing understandings of cigarette smoking that go beyond knowing that cigarettes are products that are smoked. As some of their perceptions appear likely to predispose them for future experimentation, young children need to be included in prevention research so that age‐appropriate interventions can be developed. 相似文献