全文获取类型
收费全文 | 12694篇 |
免费 | 939篇 |
国内免费 | 19篇 |
专业分类
耳鼻咽喉 | 89篇 |
儿科学 | 446篇 |
妇产科学 | 444篇 |
基础医学 | 1684篇 |
口腔科学 | 99篇 |
临床医学 | 1559篇 |
内科学 | 2199篇 |
皮肤病学 | 272篇 |
神经病学 | 1157篇 |
特种医学 | 293篇 |
外国民族医学 | 1篇 |
外科学 | 1733篇 |
综合类 | 153篇 |
一般理论 | 8篇 |
预防医学 | 1428篇 |
眼科学 | 188篇 |
药学 | 970篇 |
中国医学 | 7篇 |
肿瘤学 | 922篇 |
出版年
2023年 | 106篇 |
2022年 | 182篇 |
2021年 | 358篇 |
2020年 | 183篇 |
2019年 | 348篇 |
2018年 | 407篇 |
2017年 | 290篇 |
2016年 | 322篇 |
2015年 | 310篇 |
2014年 | 472篇 |
2013年 | 720篇 |
2012年 | 1102篇 |
2011年 | 1018篇 |
2010年 | 537篇 |
2009年 | 484篇 |
2008年 | 858篇 |
2007年 | 878篇 |
2006年 | 744篇 |
2005年 | 735篇 |
2004年 | 714篇 |
2003年 | 582篇 |
2002年 | 521篇 |
2001年 | 147篇 |
2000年 | 118篇 |
1999年 | 128篇 |
1998年 | 97篇 |
1997年 | 75篇 |
1996年 | 56篇 |
1995年 | 46篇 |
1994年 | 61篇 |
1993年 | 46篇 |
1992年 | 100篇 |
1991年 | 85篇 |
1990年 | 68篇 |
1989年 | 82篇 |
1988年 | 59篇 |
1987年 | 50篇 |
1986年 | 44篇 |
1985年 | 50篇 |
1984年 | 53篇 |
1983年 | 47篇 |
1982年 | 32篇 |
1981年 | 23篇 |
1980年 | 24篇 |
1979年 | 32篇 |
1978年 | 21篇 |
1977年 | 23篇 |
1974年 | 21篇 |
1973年 | 20篇 |
1966年 | 17篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
101.
102.
James Kortney Floyd Aycock Dawn M. Fouquier Kate Hires Kimberly A. Barkin Jennifer L. 《Maternal and child health journal》2022,26(4):788-795
Maternal and Child Health Journal - Racial identity, which is the degree that individuals define themselves regarding their racial group membership, may influence the mental well-being of Black... 相似文献
103.
Jackson Fleda Mask Bryant Allison Gregory Kimberly D. Hardeman Rachel Howell Elizabeth A. 《Maternal and child health journal》2022,26(4):659-660
Maternal and Child Health Journal - 相似文献
104.
Anna Song Beeber Christine E. Kistler Sheryl Zimmerman Cassandra Dictus Kimberly Ward Claire Farel Keith Chrzan Christopher J. Wretman Marcella Boyton-Hansen Michael Pignone Philip D. Sloane 《Journal of the American Medical Directors Association》2021,22(1):156-163
ObjectivesTo determine what information is most important to registered nurses' (RNs) decisions to call clinicians about suspected urinary tract infections (UTIs) in nursing home residents.DesignWeb-based discrete choice experiment with 19 clinical scenarios.Setting and ParticipantsOnline survey with a convenience sample of RNs (N = 881) recruited from a health care research panel.MethodsClinical scenarios used information from 10 categories of resident characteristics: UTI risk, resident type, functional status, mental status, lower urinary tract status, body temperature, physical examination, urinalysis, antibiotic request, and goals of care. Participants were randomized into 2 deliberation conditions (self-paced, n = 437 and forced deliberation, n = 444). The degree to which evidence- and non–evidence-based information was important to decision-making was estimated using unconditional multinomial logistic regression.ResultsFor all nurses (22.8%) and the self-paced group (24.1%), lower urinary tract status had the highest importance scores for the decision to call a clinician about a suspected UTI. For the forced-deliberation group, body temperature was most important (23.7%), and lower urinary tract status was less important (21%, P = .001). The information associated with the highest odds of an RN calling about a suspected UTI was painful or difficult urination [odds ratio (OR) 4.85, 95% confidence interval (CI) 4.16–5.65], obvious blood in urine (OR 4.66, 95% CI 3.99–5.44), and temperature at 101.5° (OR 3.80, 95% CI 3.28–4.42). For the self-paced group, painful or difficult urination (OR 5.65, 95% CI 4.53–7.04) had the highest odds, whereas obvious blood in urine (OR 4.39, 95% CI 3.53–5.47) had highest odds for the forced-deliberation group.Conclusions and ImplicationsThis study highlighted the importance of specific resident characteristics in nurse decision-making about suspected UTIs. Future antimicrobial stewardship efforts should aim to not only improve the previously studied overprescribing practices of clinicians, but to improve nurses' assessment of signs and symptoms of potential infections and how they weigh resident information. 相似文献
105.
106.
Edwards Katie M. Banyard Victoria L. Waterman Emily A. Mitchell Kimberly J. Jones Lisa M. Kollar Laura M. Mercer Hopfauf Skyler Simon Briana 《Prevention science》2022,23(8):1379-1393
Prevention Science - Involving youth in developing and implementing prevention programs to reduce sexual violence (SV) has the potential to improve prevention outcomes. However, there has been... 相似文献
107.
McKevitt Elaine Cheifetz Rona DeVries Kimberly Laws Alison Warburton Rebecca Gondara Lovedeep Lohrisch Caroline Nichol Alan 《Annals of surgical oncology》2021,28(11):5950-5957
Annals of Surgical Oncology - The SSO Choosing Wisely campaign recommended selective sentinel lymph node biopsy (SLNB) in clinically node-negative women aged ≥ 70 years with ER+ breast... 相似文献
108.
Alessia Di Carlo Michael Leveridge Thomas B. McGregor 《Canadian Urological Association journal》2021,15(3):E139
IntroductionCrowdfunding is becoming an increasingly used resource for patients to cover costs related to medical care. These costs can be related directly to treatments or indirectly to loss of income or travel-related costs. Little is known as to the extent of which crowdfunding is used for urological disease here in Canada. This study offers a first look at the prevalence of crowdfunding for urological disease and the factors surrounding its use.MethodsIn January 2020, we queried the GoFundMe internal search engine for fundraising campaigns regarding urological ailments. Results were categorized according to the major organs of urological disease.ResultsCrowdfunding campaigns are very prevalent within several areas of urology. Prostate cancer and chronic kidney disease represent the most frequent reason for campaigns. Fundraising goals and actual funds raised for malignant disease were significantly more than for benign disease. Interestingly, there was a significant portion of crowdfunding campaigns to cover costs for non-conventional treatments and transplant tourism.ConclusionCrowdfunding use to help cover direct and indirect costs of medical care is becoming increasingly apparent through several facets of medicine. This study shows that this statement holds true when looking at patients with urological disease in Canada. As urologists, we need to be aware of this trend, as it highlights the often-unforeseen financial burdens experienced by our patients. 相似文献
109.
Jane S Chen Mitch Matoga Brian W Pence Kimberly A Powers Courtney N Maierhofer Edward Jere Cecilia Massa Shiraz Khan Sarah E Rutstein Sam Phiri Mina C Hosseinipour Myron S Cohen Irving F Hoffman William C Miller Kathryn E Lancaster 《Journal of the International AIDS Society》2021,24(4)
IntroductionHIV diagnosis is the necessary first step towards HIV care initiation, yet many persons living with HIV (PLWH) remain undiagnosed. Employing multiple HIV testing strategies in tandem could increase HIV detection and promote linkage to care. We aimed to assess an intervention to improve HIV detection within socio‐sexual networks of PLWH in two sexually transmitted infections (STI) clinics in Lilongwe, Malawi.MethodsWe conducted a randomized controlled trial to evaluate an intervention combining acute HIV infection (AHI) screening, contract partner notification and social contact referral versus the Malawian standard of care: serial rapid serological HIV tests and passive partner referral. Enrolment occurred between 2015 and 2019. HIV‐seropositive persons (two positive rapid tests) were randomized to the trial arms and HIV‐seronegative (one negative rapid test) and ‐serodiscordant (one positive test followed by a negative confirmatory test) persons were screened for AHI with HIV RNA testing. Those found to have AHI were offered enrolment into the intervention arm. Our primary outcome of interest was the number of new HIV diagnoses made per index participant within participants’ sexual and social networks. We also calculated total persons, sexual partners and PLWH (including those previously diagnosed) referred per index participant.ResultsA total of 1230 HIV‐seropositive persons were randomized to the control arm, and 561 to the intervention arm. Another 12,713 HIV‐seronegative or ‐serodiscordant persons underwent AHI screening, resulting in 136 AHI cases, of whom 94 enrolled into the intervention arm. The intervention increased the number of new HIV diagnoses made per index participant versus the control (ratio: 1.9; 95% confidence interval (CI): 1.2 to 3.1). The intervention also increased the numbers of persons (ratio: 2.5; 95% CI: 2.0 to 3.2), sexual partners (ratio: 1.7; 95% CI: 1.4 to 2.0) and PLWH (ratio: 2.3; 95% CI: 1.7 to 3.2) referred per index participant.ConclusionsCombining three distinct HIV testing and referral strategies increased the detection of previously undiagnosed HIV infections within the socio‐sexual networks of PLWH seeking STI care. Combination HIV detection strategies that leverage AHI screening and socio‐sexual contact networks offer a novel and efficacious approach to increasing HIV status awareness. 相似文献
110.