全文获取类型
收费全文 | 39050篇 |
免费 | 7858篇 |
国内免费 | 141篇 |
专业分类
耳鼻咽喉 | 772篇 |
儿科学 | 1238篇 |
妇产科学 | 1337篇 |
基础医学 | 2886篇 |
口腔科学 | 2985篇 |
临床医学 | 6276篇 |
内科学 | 8709篇 |
皮肤病学 | 635篇 |
神经病学 | 3189篇 |
特种医学 | 1494篇 |
外科学 | 6306篇 |
综合类 | 616篇 |
现状与发展 | 12篇 |
一般理论 | 43篇 |
预防医学 | 4937篇 |
眼科学 | 611篇 |
药学 | 1544篇 |
中国医学 | 21篇 |
肿瘤学 | 3438篇 |
出版年
2023年 | 1176篇 |
2022年 | 448篇 |
2021年 | 935篇 |
2020年 | 1401篇 |
2019年 | 769篇 |
2018年 | 1632篇 |
2017年 | 1530篇 |
2016年 | 1725篇 |
2015年 | 1808篇 |
2014年 | 2340篇 |
2013年 | 2957篇 |
2012年 | 1569篇 |
2011年 | 1643篇 |
2010年 | 1816篇 |
2009年 | 2386篇 |
2008年 | 1474篇 |
2007年 | 1277篇 |
2006年 | 1369篇 |
2005年 | 1226篇 |
2004年 | 1016篇 |
2003年 | 971篇 |
2002年 | 897篇 |
2001年 | 968篇 |
2000年 | 903篇 |
1999年 | 917篇 |
1998年 | 740篇 |
1997年 | 682篇 |
1996年 | 753篇 |
1995年 | 585篇 |
1994年 | 459篇 |
1993年 | 415篇 |
1992年 | 605篇 |
1991年 | 628篇 |
1990年 | 577篇 |
1989年 | 544篇 |
1988年 | 473篇 |
1987年 | 501篇 |
1986年 | 447篇 |
1985年 | 427篇 |
1984年 | 356篇 |
1983年 | 327篇 |
1982年 | 232篇 |
1981年 | 209篇 |
1980年 | 156篇 |
1979年 | 224篇 |
1978年 | 176篇 |
1977年 | 191篇 |
1976年 | 153篇 |
1974年 | 206篇 |
1973年 | 179篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
Maaike van Gerwen MD Naomi Alpert MS Raja Flores MD Emanuela Taioli MD PhD 《American journal of industrial medicine》2020,63(2):115-120
The association between asbestos exposure, mainly in occupational settings, and malignant mesothelioma has been well established; this has prompted several countries to establish mesothelioma epidemiologic surveillance programs often at the request of national agencies. This review compares currently existing mesothelioma registries worldwide to develop a concept model for a US real-time case capture mesothelioma registry. Five countries were identified with a mesothelioma specific registry, including Italy, France, UK, Australia, and South Korea. All, except the UK, used interviews to collect exposure data. Linkage with the national death index was available or was in future plans for all registries. The registries have limited information on treatment, quality of life, and other patient-centered outcomes such as symptoms and pain management. To thoroughly collect exposure data, “real-time” enrollment is preferable; to maximize the capture of mesothelioma cases, optimal coverage, and a simplified consent process are needed. 相似文献
5.
Chie Teramoto PHN RN MS Satoko Nagata PhD PHN RN Reiko Okamoto PhD PHN RN Ruriko Suzuki PHN RN MS Emiko Kishi PhD PHN RN Michie Nomura DSN PHN RN Noriko Jojima PHN RN MS Masumi Nishida PhD PHN RN Keiko Koide PhD PHN RN Emiko Kusano PhD PHN RN Saori Iwamoto PhD PHN RN Sachiyo Murashima PhD PHN RN 《Public health nursing (Boston, Mass.)》2015,32(6):654-661
6.
7.
8.
In both adults and children with diabetes, technologies such as continuous subcutaneous insulin infusion using insulin pumps and continuous glucose monitoring can help improve diabetes control, reduce hypoglycaemia and improve quality of life. Access to these technologies in the UK is very variable. Some technologies are recommended by the National Institute for Health and Care Excellence, while others have not been appraised, and new technologies are emerging all the time. Additionally, different guidelines for adults and children further complicate access to diabetes technology in the transition from paediatric to adult care. Against this background, Diabetes UK and NHS England have brought together a multidisciplinary group of experts, including clinicians and people with diabetes, to develop this consensus guideline, combining the different technologies into a common pathway to aid clinical and policy decision‐making. We created a pathway that supports the incremental addition of technology as monotherapy and then dual therapy in the same way that we incrementally add in therapeutic agents to support people with Type 2 diabetes to achieve their personalized glycaemic targets. The pathway emphasizes the importance of structured education, specialist support and appropriate access to psychological therapies, as essential pillars for optimized use of diabetes‐related technology, and recommends the re‐evaluation of its use when the individual is unable either to use the technology appropriately or to achieve the intended outcomes. This pathway is endorsed by UK‐wide clinical and patient associations and we recommend that providers and commissioners use it to ensure the right individual with diabetes has access to the right technology in a timely way to help achieve better outcomes. 相似文献
9.
Sarah E. Henderson Shana A. Hall Jessica M. Callegari James A. Desjardins Sidney J. Segalowitz Karen L. Campbell 《Psychophysiology》2022,59(1):e13947
Recent work suggests that while voluntary episodic memory declines with age, involuntary episodic memory, which comes to mind spontaneously without intention, remains relatively intact. However, the neurophysiology underlying these differences has yet to be established. The current study used electroencephalography (EEG) to investigate voluntary and involuntary retrieval in older and younger adults. Participants first encoded sounds, half of which were paired with pictures, the other half unpaired. EEG was then recorded as they listened to the sounds, with participants in the involuntary group performing a sound localization cover task, and those in the voluntary group additionally attempting to recall the associated pictures. Participants later reported which sounds brought the paired picture to mind during the localization task. Reaction times on the localization task were slower for voluntary than involuntary retrieval and for paired than unpaired sounds, possibly reflecting increased attentional demands of voluntary retrieval and interference from reactivation of the associated pictures respectively. For the EEG analyses, young adults showed greater alpha event-related desynchronization (ERD) during voluntary than involuntary retrieval at frontal and occipital sites, while older adults showed pronounced alpha ERD regardless of intention. Additionally, older adults showed greater ERD for paired than unpaired sounds at occipital sites, likely reflecting visual reactivation of the associated pictures. Young adults did not show this alpha ERD memory effect. Taken together, these data suggest that involuntary memory is largely preserved with age, but this may be due to older adults' greater recruitment of top-down control even when demand for such control is limited. 相似文献
10.