全文获取类型
收费全文 | 754篇 |
免费 | 29篇 |
国内免费 | 3篇 |
专业分类
耳鼻咽喉 | 76篇 |
儿科学 | 8篇 |
妇产科学 | 51篇 |
基础医学 | 36篇 |
口腔科学 | 83篇 |
临床医学 | 49篇 |
内科学 | 165篇 |
皮肤病学 | 12篇 |
神经病学 | 41篇 |
特种医学 | 17篇 |
外科学 | 183篇 |
综合类 | 10篇 |
预防医学 | 19篇 |
眼科学 | 11篇 |
药学 | 14篇 |
中国医学 | 2篇 |
肿瘤学 | 9篇 |
出版年
2024年 | 5篇 |
2023年 | 8篇 |
2022年 | 18篇 |
2021年 | 25篇 |
2020年 | 7篇 |
2019年 | 16篇 |
2018年 | 20篇 |
2017年 | 21篇 |
2016年 | 21篇 |
2015年 | 29篇 |
2014年 | 50篇 |
2013年 | 44篇 |
2012年 | 60篇 |
2011年 | 62篇 |
2010年 | 33篇 |
2009年 | 37篇 |
2008年 | 62篇 |
2007年 | 48篇 |
2006年 | 56篇 |
2005年 | 42篇 |
2004年 | 51篇 |
2003年 | 23篇 |
2002年 | 35篇 |
2001年 | 2篇 |
2000年 | 2篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1994年 | 1篇 |
1992年 | 2篇 |
1985年 | 1篇 |
排序方式: 共有786条查询结果,搜索用时 0 毫秒
51.
52.
OBJECTIVES: The objective of the study was to investigate the incidence rate of postpartum-onset major depression (PPMD) and to examine associated sociodemographic characteristics, obstetric factors, and personality disorders. METHOD: The study data were obtained from 302 women who delivered at a child and maternity hospital. We interviewed the new mothers on the first day of their childbirth and at 6 weeks postpartum. Major depression and axis II diagnoses were determined by means of the Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, and the Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders, Revised Third Edition, Personality Disorders, respectively. RESULTS: Nineteen (6.3%) women had new-onset major depression during 6 weeks postpartum. Postpartum-onset major depression was unrelated to age, educational level, employment status, planned or unplanned pregnancy, history of abortion and gestational complications, term of delivery, type of delivery, sex of the baby, and mother's breast-feeding. Frequency of primiparity and of avoidant, dependent, and obsessive-compulsive personality disorders was higher in women with PPMD than that in women without PPMD. As a result of logistic regression analysis, the independent predictor of PPMD was the presence of avoidant, dependent, and obsessive-compulsive personality disorders. CONCLUSION: Our results suggest that childbearing women with avoidant, dependent, and obsessive-compulsive personality disorders have increased risk of new-onset major depression during the postpartum period. 相似文献
53.
54.
Koz C Uzun M Yokusoglu M Baysan O Erinc K Sag C Hasimi A Isik E 《Acta cardiologica》2007,62(3):239-243
OBJECTIVE: In this study, we investigated the relation between plasma adiponectin levels and other risk factors in a young patient population. MATERIAL AND RESULTS: We enrolled consecutively 69 young patients (< 45 years) with coronary artery disease in the study group. he patient enrollment period was between February 2003 and November 2004. The control group consisted of 42 age- and sex-matched healthy subjects. Anthropometric, lipid and other variables including adiponectin, fasting glucose and plasma insulin levels were measured in all subjects. Appropriate statistical analyses were performed to determine the differences between the groups, the relation between adiponectin and other parameters and independent factors that predict CAD. There was a statistically significant difference between the groups in terms of lipid parameters (triglycerides, total cholesterol, HDL and LDL cholesterol). Mean plasma adiponectin levels were significantly lower in the patients (P < 0.05).Among the risk factors adiponectin had a significant negative association with the plasma triglyceride level (P < 0.01). Logistic regression analysis revealed triglycerides and adiponectin as independent predictors of CAD.The areas under the ROC curves of adiponectin and triglycerides were not different (P > 0.05). CONCLUSION: We found a decreased plasma adiponectin level in young male patients with coronary artery disease. It may be a novel marker of atherosclerosis in young men. 相似文献
55.
56.
57.
Koruk M Savaş MC Yilmaz O Tayşi S Karakok M Gündoğdu C Yilmaz A 《Journal of clinical gastroenterology》2003,37(2):177-182
GOALS/BACKGROUND: Nonalcoholic steatohepatitis (NASH) is a form of liver disease that is histologically indistinguishable from alcoholic hepatitis but occurs in persons who do not consume alcohol in excess. The objectives of this study are to measure serum levels of lipids, lipoproteins and apolipoproteins (apo AI, apo B), lipoprotein (a) [Lp (a)] in patients with nonalcoholic steatohepatitis (NASH), and to investigate the relationship with liver histology. STUDY: The scope of this study is composed of 36 patients (27 males, 9 females) with NASH, diagnosed by biochemical liver function tests, sonographic examination of liver and liver biopsy and 32 healthy adults as a control group (22 males, 10 females). Serum lipids, lipoproteins and apo AI, apo B, and Lp (a) measurements were taken in the study group and controls, and a correlation with histopathologic findings was searched for. RESULTS: Serum mean levels (+/- SD as mg/dl) of total cholesterol (201.05 +/- 34.48), triglyceride (225.94 +/- 156.50), and LDL-cholesterol (111.77 +/- 19.85) in patients with NASH were significantly higher than those of the control group (170.68 +/- 31.06; 138.81 +/- 49.96; 100.68 +/- 17.98; respectively) and serum HDL-cholesterol level (41.22 +/- 2.47) was less than that of the control group (45.06 +/- 8.32) (P = 0.017). The serum mean level of apo AI (151.54 +/- 30.90) in the study group was lower than that of the controls (160.62 +/- 22.11), but the difference was not significant (P = 0.17). However, the serum apo AI level in patients with liver fibrosis (140.62 +/- 35.62) was significantly lower than that of patients without liver fibrosis (164.57 +/- 25.47) (P = 0.01). The serum mean level of apo B (89.80 +/- 20.62) in the patients was significantly higher than the control group (73.25 +/- 25.39) (P = 0.004), but not correlate with liver histopathology. The serum Lp (a) levels in both the patients (13.09 +/- 9.61) and the controls (12.01 +/- 7.50) were not different (P = 0.61). Hypertriglyceridemia (above 220 mg/dL) had a positive correlation with steatosis of the liver (r = 0.333, P = 0.04) and a negative correlation with liver fibrosis (r = -0.438, P = 0.008). There was a significant negative correlation between apo AI and steatosis (r = -0.360, P = 0.03), inflammation (r = -0.364, P = 0.03) and fibrosis of liver (r = -0.418, P = 0.01). A positive correlation of serum LDL-cholesterol (r = 0.507, P = 0.002) and Lp(a) (r = 0.394, P = 0.01) concentrations with liver fibrosis was also noted. CONCLUSIONS: Abnormalities of lipid metabolism such as the increase of serum triglyceride, cholesterol and LDL-cholesterol level and decrease of HDL-cholesterol may be the contributing factors in the development of NASH. The decrease in apo AI and the increase in LDL and Lp (a) in patients were correlated with liver fibrosis. Apo AI may be a serum marker for liver fibrosis in patients with NASH. 相似文献
58.
Bagis Nilsun Kurt Mehmet Hakan Evli Cengiz Camgoz Melike Atakan Cemal Peker Ozturk Hilal Orhan Kaan 《Oral Radiology》2022,38(3):336-336
59.
Faruk Uguz md Cemal Akman md Seher Kucuksarac md Osman Tufekci md 《Psychiatry and clinical neurosciences》2009,63(1):50-55
Aims: The purpose of the present study was to examine the current prevalence of mood and anxiety disorders, and factors related to mood and anxiety disorders in patients with rheumatoid arthritis (RA).
Method: The study sample included 83 consecutive patients with RA who were admitted to a rheumatology outpatient clinic. Diagnoses of psychiatric disorders were determined using the Structured Clinical Interview for DSM-IV (SCID-I). To assess physical disability and disease activity, the Health Assessment Questionnaire and the Disease Activity Score, respectively, were used.
Results: The prevalence of any mood or any anxiety disorder was 43.4%. The two most common psychiatric diagnoses were major depression (21.7%) and generalized anxiety disorder (16.9%). Mood and anxiety disorders were unrelated to sociodemographic features, disease-related factors, and medications for RA except anti-tumor necrosis factor-α (TNF-α). These disorders, however, were identified less frequently in patients with RA receiving anti-TNF-α drugs compared to patients who did not receive such medications.
Conclusion: Patients with RA frequently have mood and anxiety disorders, and anti-TNF-α drugs may be useful for the mental status of these patients. 相似文献
Method: The study sample included 83 consecutive patients with RA who were admitted to a rheumatology outpatient clinic. Diagnoses of psychiatric disorders were determined using the Structured Clinical Interview for DSM-IV (SCID-I). To assess physical disability and disease activity, the Health Assessment Questionnaire and the Disease Activity Score, respectively, were used.
Results: The prevalence of any mood or any anxiety disorder was 43.4%. The two most common psychiatric diagnoses were major depression (21.7%) and generalized anxiety disorder (16.9%). Mood and anxiety disorders were unrelated to sociodemographic features, disease-related factors, and medications for RA except anti-tumor necrosis factor-α (TNF-α). These disorders, however, were identified less frequently in patients with RA receiving anti-TNF-α drugs compared to patients who did not receive such medications.
Conclusion: Patients with RA frequently have mood and anxiety disorders, and anti-TNF-α drugs may be useful for the mental status of these patients. 相似文献
60.
Levent T?k Mustafa Naz?ro?lu Salih Do?an Mehmet Cemal Kahya ?zlem T?k 《Indian journal of ophthalmology》2014,62(1):12-15