全文获取类型
收费全文 | 1948篇 |
免费 | 177篇 |
国内免费 | 54篇 |
专业分类
耳鼻咽喉 | 18篇 |
儿科学 | 124篇 |
妇产科学 | 41篇 |
基础医学 | 187篇 |
口腔科学 | 50篇 |
临床医学 | 145篇 |
内科学 | 462篇 |
皮肤病学 | 41篇 |
神经病学 | 64篇 |
特种医学 | 213篇 |
外科学 | 265篇 |
综合类 | 112篇 |
一般理论 | 1篇 |
预防医学 | 115篇 |
眼科学 | 21篇 |
药学 | 136篇 |
中国医学 | 8篇 |
肿瘤学 | 176篇 |
出版年
2023年 | 20篇 |
2022年 | 14篇 |
2021年 | 43篇 |
2020年 | 40篇 |
2019年 | 33篇 |
2018年 | 43篇 |
2017年 | 59篇 |
2016年 | 58篇 |
2015年 | 56篇 |
2014年 | 90篇 |
2013年 | 107篇 |
2012年 | 77篇 |
2011年 | 98篇 |
2010年 | 102篇 |
2009年 | 93篇 |
2008年 | 86篇 |
2007年 | 110篇 |
2006年 | 76篇 |
2005年 | 60篇 |
2004年 | 49篇 |
2003年 | 38篇 |
2002年 | 44篇 |
2001年 | 55篇 |
2000年 | 34篇 |
1999年 | 43篇 |
1998年 | 91篇 |
1997年 | 65篇 |
1996年 | 63篇 |
1995年 | 52篇 |
1994年 | 49篇 |
1993年 | 45篇 |
1992年 | 17篇 |
1991年 | 13篇 |
1990年 | 19篇 |
1989年 | 27篇 |
1988年 | 28篇 |
1987年 | 18篇 |
1986年 | 21篇 |
1985年 | 20篇 |
1984年 | 12篇 |
1983年 | 12篇 |
1982年 | 9篇 |
1980年 | 12篇 |
1979年 | 8篇 |
1978年 | 8篇 |
1977年 | 9篇 |
1976年 | 14篇 |
1975年 | 12篇 |
1972年 | 5篇 |
1971年 | 4篇 |
排序方式: 共有2179条查询结果,搜索用时 31 毫秒
101.
Holly C. Gooding MD MS Shannon McGinty MD Tracy K. Richmond MD MPH Matthew W. Gillman MD SM Alison E. Field ScD 《Journal of general internal medicine》2014,29(8):1098-1104
BACKGROUND
Young adults are less likely than older adults to be aware they have hypertension or to be treated for hypertension.OBJECTIVE
To describe rates of hypertension awareness and control in a cohort of young adults and understand the impact of health insurance, utilization of preventive care, and self-perception of health on rates of hypertension awareness and control in this age group.DESIGN AND PARTICIPANTS
Cross-sectional study of 13,512 young adults participating in Wave IV of the National Longitudinal Study of Adolescent Health in 2007–2008.MAIN MEASURES
We defined hypertension as an average of two measured systolic blood pressures (SBP) ≥ 140 mmHg, diastolic blood pressures (DBP) ≥ 90 mmHg, or self-report of hypertension. We defined hypertension awareness as reporting having been told by a health care provider that one had high blood pressure, and assessed awareness among those with uncontrolled hypertension. We considered those aware of having hypertension controlled if their average measured SBP was < 140 mmHg and DBP was < 90 mmHg.KEY RESULTS
Of the 3,303 young adults with hypertension, 2,531 (76 %) were uncontrolled, and 1,893 (75 %) of those with uncontrolled hypertension were unaware they had hypertension. After adjustment for age, sex, race/ethnicity, weight status, income, education, alcohol and tobacco use, young adults with uncontrolled hypertension who had (vs. didn’t have) routine preventive care in the past 2 years were 2.4 times more likely (95 % confidence interval [CI] 1.68–3.55) to be aware, but young adults who believed they were in excellent (vs. less than excellent) health were 64 % less likely to be aware they had hypertension (OR 0.36, 95 % CI 0.23–0.57). Neither preventive care utilization nor self-rated health was associated with blood pressure control.CONCLUSIONS
In this nationally representative group of young adults, rates of hypertension awareness and control were low. Efforts to increase detection of hypertension must address young adults’ access to preventive care and perception of their need for care. 相似文献102.
Infant oral mutilation is the practice of removing developing tooth germs, commonly the mandibular canine, in infants up to the age of 1 year. Subsequent complications include missing, impacted or hypoplastic permanent anterior and canine teeth. We report on a case of bilaterally missing lower canines thought to be due to infant oral mutilation. It is important that general dental practitioners are aware of this practice and resulting complications when treating families from sub‐Saharan East Africa. 相似文献
103.
Loay Salman Hector Castro Roberto I. Vazquez‐Padron Mauricio Monrroy Yehia Abdelwahed Abid Rizvi Juan Duque Muhammad Usman Talha Akmal Donna Merrill Ali Nayer Arif Asif 《Seminars in dialysis》2014,27(2):E21-E23
Percutaneous transluminal balloon angioplasty (PTA) is a commonly performed procedure for hemodialysis vascular access dysfunction including thrombosis. While PTA is generally safe, balloon rupture during the procedure is a potential complication. Because such a rupture can cause damage to the blood vessel, indication of an imminent balloon rupture might help avoid such a complication. This analysis reports on six PTA procedures that were complicated by balloon rupture. All cases demonstrated terminal (caudal/cranial) cinch deformation. There was a loss of sharp terminal tapering and its replacement with banana silhouette before the balloon rupture. Importantly, the contour deformation and balloon rupture occurred at a pressure that was lower than the rated burst pressure. The cinch deformity can be used as an indication for impending balloon rupture. We suggest deflation of balloons that demonstrate shape deformations to avoid vascular injury. 相似文献
104.
Vivek B. Kute Priyadarshini S. Shah Aruna V. Vanikar Manoj R. Gumber Himanshu V. Patel Divyesh P. Engineer Pankaj R. Shah Pranjal R. Modi Veena R Shah Syed Jamal Rizvi Hargovind L. Trivedi 《Transplant international》2014,27(10):1015-1021
Because access to transplantation with HLA‐desensitization protocols and ABO incompatible transplantation is very limited due to high costs and increased risk of infections from more intense immunosuppression, kidney paired donation (KPD) promises hope to a growing number of end‐stage renal disease (ESRD) patient in India. We present a government and institutional ethical review board approved study of 56 ESRD patients [25 two‐way and 2 three‐way pairs] who consented to participate in KPD transplantation at our center in 2013, performed to avoid blood group incompatibility (n = 52) or positive cross‐match (n = 4). All patients had anatomic, functional, and immunologically comparable donors. The waiting time in KPD was short as compared to deceased donor transplantation. Laparoscopic donor nephrectomy was performed in 54 donors. Donor relationships were spousal (n = 40), parental (n = 13), others (n = 3), with median HLA match of 1. Graft survival was 97.5%. Three patients died with functioning graft. 16% had biopsy‐proven acute rejection. Mean serum creatinine was 1.2 mg/dl at 0.73 ± 0.32 months follow‐up. KPD is a viable, legal, and rapidly growing modality for facilitating LDRT for patients who are incompatible with their healthy, willing living donor. To our knowledge, this is the largest single‐center report from India. 相似文献
105.
106.
107.
Gene Yong-Kwang Ong Nicola Ngiam Lai Peng Tham Yee Hui Mok Jacqueline SM Ong Khai Pin Lee Sashikumar Ganapathy Shu-Ling Chong Jen Heng Pek Su Yah Chew Yang Chern Lim Germac Qiaoyue Shen Jade Kua Josephine Tan Kee Chong Ng 《Singapore medical journal》2021,62(8):372
We present the 2021 Singapore Paediatric Resuscitation Guidelines. The International Liaison Committee on Resuscitation’s Pediatric Taskforce Consensus Statements on Science and Treatment Recommendations, which was published in October 2020, and the updated resuscitation guidelines from the American Heart Association and European Resuscitation Council, were reviewed and discussed by the committee. These recommendations were derived after deliberation of peer-reviewed evidence updates on paediatric resuscitation and took into consideration the local setting and clinical practice. 相似文献
108.
目的:肺癌分期与肿瘤直径的关系已被证实是一个预后指标,因此被纳入1986年肺癌分类的国际系统。近年来由于CT飞速发展,人们可以诊断出更小的肺癌,于是有人提倡对肺癌Ⅰ期进一步分期,即根据肿瘤直径小于还是大于30mm,将无确切远处淋巴结转移的病例(Ⅰ期病例)细分为Ⅰa和Ⅰb期。在诊断无症状(即潜伏)的肺癌时,CT普查的开展使人们考虑肿瘤大小的预后价值。在此我们对CT普查诊断的无症状潜伏型肺癌作了分期与大小关系的报道。 相似文献
109.
110.