全文获取类型
收费全文 | 223014篇 |
免费 | 19481篇 |
国内免费 | 4563篇 |
专业分类
耳鼻咽喉 | 3309篇 |
儿科学 | 4203篇 |
妇产科学 | 3727篇 |
基础医学 | 17484篇 |
口腔科学 | 7268篇 |
临床医学 | 26424篇 |
内科学 | 20721篇 |
皮肤病学 | 2459篇 |
神经病学 | 11093篇 |
特种医学 | 5788篇 |
外国民族医学 | 11篇 |
外科学 | 21073篇 |
综合类 | 34513篇 |
现状与发展 | 9篇 |
一般理论 | 24篇 |
预防医学 | 30439篇 |
眼科学 | 2101篇 |
药学 | 20561篇 |
378篇 | |
中国医学 | 26253篇 |
肿瘤学 | 9220篇 |
出版年
2024年 | 1000篇 |
2023年 | 4575篇 |
2022年 | 8511篇 |
2021年 | 11093篇 |
2020年 | 10934篇 |
2019年 | 12344篇 |
2018年 | 10674篇 |
2017年 | 9276篇 |
2016年 | 8283篇 |
2015年 | 7740篇 |
2014年 | 15125篇 |
2013年 | 15367篇 |
2012年 | 13512篇 |
2011年 | 14401篇 |
2010年 | 11638篇 |
2009年 | 10103篇 |
2008年 | 9323篇 |
2007年 | 9453篇 |
2006年 | 8027篇 |
2005年 | 6741篇 |
2004年 | 5576篇 |
2003年 | 4904篇 |
2002年 | 3769篇 |
2001年 | 3132篇 |
2000年 | 2763篇 |
1999年 | 2263篇 |
1998年 | 1837篇 |
1997年 | 1602篇 |
1996年 | 1303篇 |
1995年 | 1237篇 |
1994年 | 1119篇 |
1993年 | 998篇 |
1992年 | 899篇 |
1991年 | 829篇 |
1990年 | 727篇 |
1989年 | 688篇 |
1988年 | 644篇 |
1987年 | 576篇 |
1986年 | 534篇 |
1985年 | 1786篇 |
1984年 | 2063篇 |
1983年 | 1298篇 |
1982年 | 1710篇 |
1981年 | 1181篇 |
1980年 | 1014篇 |
1979年 | 905篇 |
1978年 | 742篇 |
1977年 | 553篇 |
1976年 | 693篇 |
1975年 | 478篇 |
排序方式: 共有10000条查询结果,搜索用时 21 毫秒
151.
目的探讨大学生的自我和谐与交往焦虑的特点和关系。方法采用自我和谐量表和交往焦虑量表对310名大学生进行调查。结果男生在自我灵活性和自我和谐上得分低于女生(P〈0.01),研究生在自我灵活性上得分低于本科生(P〈0.01),理科生在社交焦虑上得分低于文科生(P〈0.05);高自我和谐组在社交焦虑上得分低于低自我和谐组(P〈0.05);从总体上看,社交焦虑与自我与经验的不和谐、自我刻板性、总体的自我和谐均呈正相关(P〈0.01)。结论大学生的自我和谐和社交焦虑之间均存在相关,自我和谐对社交焦虑具有良好的预测作用。 相似文献
152.
Background Previous studies have noted that there is a high utilization rate of traditional Chinese medicine (TCM) services in Taiwan, China and in western countries, but few studies investigated factors associated with the utilization of TCM in Taiwan. This study analyzes the utilization rate and the factors associated with the utilization of TGM in Taiwan. Methods Data for this study were from the 2002 HPKAP Survey that conducted the face-to-face questionnaire interviews of people aged 15 years and over from October 2002 to March 2003 in Taiwan. This study analyzed the utilization of TCM outpatient services, including admission to the hospital and clinic visits. Results A total of 26 755 participants completed the survey in the six-month period. The data revealed that 10.4% of participants had utilized TCM services in the past one month while 4.2% of participants utilized TCM only (without using Western medicine outpatient services (WM) or Folk therapy (F'I')). The average visits of TCM services per patient was higher among people who had utilized TCM and FT services (2.68 visits) than among those who had utilized WM and FT services (2.15 visits) or TCM services alone (2.15 visits) during the previous one month. Younger people (odds ratio OR= 1.78, 95%C/= 1.47-2.16), women (compared with men), and people with higher education levels (OR = 1.58, 95%CI =1.25-1.98) were more likely to visit TCM than compared groups. People with self-reported poor health status (OR = 2.07,95%CI = 1.76-2.44) and people who exercise regularly (OR = 1.17, 95%CI = 1.07-1.27) had higher ORs to visit TCM service than comparison group.Conclusions There is a high utilization of TCM in Taiwan. Further studies are needed to investigate the related factors and determinants between the utilization of TCM and the utilization of FT in Taiwan. 相似文献
153.
154.
155.
Suzanne C. Tough David W. Johnston Jodi E. Siever Gayleen Jorgenson Linda Slocombe Carolyn Lane Margaret Clarke 《分娩》2006,33(3):183-194
ABSTRACT: Background: The addition of supplementary prenatal support may improve the health and well‐being of high‐risk women and families. The objective of this randomized controlled trial was to examine the impact of supplementary prenatal care on resource use among a community‐based population of pregnant women. Methods: Pregnant women from three urban maternity clinics were randomized (a) to current standard of physician care, (b) to current standard of care plus consultation with a nurse, or (c) to (b) plus consultation with a home visitor. Participants were 1,352 women who received 3 telephone interviews. The primary outcome was resource use (e.g., attended prenatal classes, used nutritional counseling). Results: Overall, those in the nurse intervention group were more likely to attend an “Early Bird” prenatal class and parenting classes, and to use nutrition counseling and agencies that assist with child care. Women provided with extra nursing and home visitation supports were more likely to use a written resource guide, nutrition counseling, and agencies that assist with child care. Among women at higher risk (e.g., language barriers, young maternal age, low income), the nurse intervention significantly increased use of early prenatal classes, whereas the nurse and home visitor intervention significantly increased use of the written resource guide and nutrition counseling. The intervention substantially increased the amount of information received on numerous pregnancy‐related topics but had little impact on resource use for mental health and poverty‐related needs. Among those with added support, resource use among low‐risk women was generally greater than among high‐risk women. Conclusions: Additional support provided by nurses, or nurses and home visitors, can successfully address informational needs and increase the likelihood that women will use existing community‐based resources. This finding was true even for high‐risk women, although this intervention did not reduce the difference in resource use between high‐ and low‐risk women. (BIRTH 33:3 September 2006) 相似文献
156.
目的 观察用常规方法及中西医结合方法治疗酒精性肝病的疗效差异。方法 将 5 6例酒精性肝病患者随机分为二组 ,对照组常规方法治疗 ,治疗组常规方法加中医辩证施治。结果 两组治疗三个月后 ,治疗组消化道症状消除 ,GOT/GPT恢复正常 ,γ -GT恢复正常 ,B超声像图好转等四个观察指标明显优于对照组。结论 中西医结合治疗酒精性肝病目前仍是可靠和可取的方法 相似文献
157.
This study aimed to identify risk factors for type 2 diabetes (T2D) in Korea, a rapidly changing country. Data of 5,132 adults aged 20-85 were used from the 2001 Korean Health and Nutrition Examination Survey. Multiple logistic regression was carried out to identify risk factors for T2D. Three models were specified: (i) socioeconomic and demographic factors (model 1: age, gender, education, poverty income ratio, employment), (ii) behavioral risk factors and covariates (model 2: obesity, physical activity, smoking, alcohol drinking, dietary quality, family history of T2D, co-morbidity) and (iii) socioeconomic, demographic, and behavioral factors (model 3). The prevalence of T2D was 7.4%. Less education (OR 1.41, 95% CI 1.08-1.84), age (OR 2.19, 95% CI 1.56-3.08 in 40-59 yrs, OR 4.05, 95% CI 2.76-5.95 in 60 yrs + comparing to 20-39 yrs) and abdominal obesity (OR 2.24, 95% CI 1.79-2.82) were risk factors for T2D even after controlling for other factors simultaneously. There was a significant association of T2D with ever smoking (OR 1.34, 95% CI 1.06-1.67). The relationship of age with T2D was modified by gender in model 1 and the relationship of smoking with T2D was modified by obesity in model 2. Less educated, older, obese or ever smokers were more likely to have T2D. Gender mediated the relationship of age, and obesity mediated the relationship of smoking, with T2D. Intervention programs for T2D in Korea should take the interactions among risk factors into account. 相似文献
158.
L. M. ALEDORT 《Haemophilia》2007,13(S5):1-2
Summary. Haemophilia, an ancient disease, now has sophisticated methods for diagnosis and treatment. The genetically missing factors can now be supplied by fractionation of human-derived (HD) plasma or with recombinant technology (r). Making therapeutic choices is complicated by past transfusion-transmitted diseases. HD and r products now have similar safety profiles. Several diseases have only HD products for treatment. These products remain important in our treatment armamentarium. 相似文献
159.
T. Clerici R. Warschkow F. Triponez M. Brändle 《Langenbeck's archives of surgery / Deutsche Gesellschaft fur Chirurgie》2007,392(5):611-615
Background From the endocrine surgeon’s perspective, it is important to know how endocrinologists manage patients with primary hyperparathyroidism
(pHPT). The aim of this survey was to evaluate the preoperative diagnostic workup and referral pattern for parathyroidectomy
by Swiss endocrinologists.
Materials and methods The survey was conducted by mailing a questionnaire to all members of the Swiss Society for Endocrinology and Diabetes in
spring 2005.
Results The questionnaire was sent back by 68 of 124 endocrinologists (55%). The median annual case volume of patients with pHPT was
6 (range 1–50). The mean fraction of these patients referred for surgery was 59 ± 24%. This fraction was significantly higher
in the German-speaking part of Switzerland than in the French-speaking part (67 ± 21% vs 51 ± 27%). When considering surgery
for asymptomatic pHPT, 62% of the endocrinologists rely routinely on the recommendations of the NIH consensus conference and
86% on the subsequent guidelines of the workshop in 2002. Sixty-seven percent of the endocrinologists routinely perform localization
studies before possible referral for surgical exploration. Typically, they consisted of an ultrasonography of the neck (93%)
and a 99mTc-MIBI scintigraphy (80%). The impact of the availability of a minimally invasive surgical procedure on the number of patients
referred for surgery seems to be considerable. Sixty-one percent of the participants would expand the indication for surgery
if the operation could be done by a limited surgical approach.
Conclusions In a relevant fraction of patients with pHPT, endocrinologists still do not regard curative therapy as mandatory. Surprisingly,
there are significant cultural differences concerning referral patterns to surgery between the German-speaking and the French-speaking
parts of Switzerland. Minimally invasive procedures seem to lower the threshold for referral for surgical therapy.
This work was presented at the 2nd Biennial Congress of the ESES, May 2006, Krakow, Poland. 相似文献
160.
三级综合医院护士在社区护理中的角色与作用 总被引:1,自引:1,他引:0
笔者分析了三级综合医院开展社区护理的必要性和可行性;阐述了三级综合医院护士在开展社区护理中承担的教育者和咨询者、服务者、协调者和合作者、观察和研究者多种角色;并提出三级综合医院护士在开展社区护理中所发挥的作用,包括:(1)向社区提供经验丰富的专科护士,提高社区护理质量;(2)为社区护士的培养提供师资队伍和培训基地;(3)开设日间病房,为病人提供方便的治疗及护理;(4)建立双向转诊的社区卫生服务网络,为社区提供持续的优质服务;(5)开展社区护理研究。 相似文献