全文获取类型
收费全文 | 163篇 |
免费 | 5篇 |
专业分类
儿科学 | 7篇 |
基础医学 | 10篇 |
口腔科学 | 3篇 |
临床医学 | 12篇 |
内科学 | 34篇 |
皮肤病学 | 3篇 |
神经病学 | 8篇 |
特种医学 | 18篇 |
外科学 | 11篇 |
综合类 | 36篇 |
预防医学 | 7篇 |
眼科学 | 4篇 |
药学 | 5篇 |
中国医学 | 1篇 |
肿瘤学 | 9篇 |
出版年
2023年 | 1篇 |
2022年 | 2篇 |
2021年 | 2篇 |
2020年 | 1篇 |
2019年 | 1篇 |
2018年 | 1篇 |
2017年 | 2篇 |
2016年 | 2篇 |
2015年 | 3篇 |
2014年 | 9篇 |
2013年 | 7篇 |
2012年 | 7篇 |
2011年 | 4篇 |
2010年 | 13篇 |
2009年 | 9篇 |
2008年 | 5篇 |
2007年 | 9篇 |
2006年 | 6篇 |
2005年 | 2篇 |
2004年 | 4篇 |
2003年 | 3篇 |
2002年 | 1篇 |
2001年 | 4篇 |
2000年 | 2篇 |
1999年 | 4篇 |
1998年 | 13篇 |
1997年 | 7篇 |
1996年 | 4篇 |
1995年 | 5篇 |
1994年 | 10篇 |
1993年 | 3篇 |
1992年 | 1篇 |
1990年 | 3篇 |
1989年 | 3篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1981年 | 1篇 |
1980年 | 4篇 |
1976年 | 3篇 |
排序方式: 共有168条查询结果,搜索用时 15 毫秒
71.
Presence of a systolic murmur is not always indicative of organic heart disease or abnormality, especially so in asymptomatic individuals. We studied 210 young adults (192 males, 18 females) of the age group 16 to 23 years with systolic murmurs to evaluate the utility of noninvasive tests in ascertaining the presence or absence of heart disease. Each case was categorized after clinical evaluation and again after noninvasive investigations (chest radiogram, 12 lead ECG, and echocardiography) into 3 groups. Based on clinical evaluation alone, 190 (90.5%) cases had no evidence of heart disease (group A), 16 (7.6%) cases had definite heart disease (group C) and in 4 (1.9%) cases the presence of heart disease could not be ruled out definitely (group B). The recategorization after investigations did not alter the initial diagnosis in any of the subjects from groups A and C (98.1%). Two cases from group B (0.95%) changed groups whereas in the remaining 2 cases (0.95%) from group B no definite conclusions could be reached even after echocardiography.KEY WORDS: Heart disease, Heart murmurs, Echocardiography, Diagnosis 相似文献
72.
Sonal Asthana Suryanarayana VS Deo Nootan K Shukla Vinod Raina 《Journal of Medical Imaging and Radiation Oncology》2001,45(3):380-382
Metastases to the peripheral bones of the extremities are rare. Such lesions are often diagnosed as inflammatory or infective in nature. We present a report of a case of simultaneous involvement of the peripheral bones of the extremities – the talus and the thumb of the left hand – with a brief review of pathophysiology and management. 相似文献
73.
74.
Sagarika Patyal Ajay Banarji VS Gurunadh Madhu Bhadauria )Poninder Kumar AK Upadhyay 《Medical Journal Armed Forces India》2011,67(2):113-116
Background
Glaucoma can develop after penetrating keratoplasty resulting in irreversible loss of vision. The incidence of post-penetrating keratoplasty glaucoma varies from 31% in the early postoperative period to 29% after three months. Various factors are responsible for the rise of intraocular pressure (IOP). This study was carried out to evaluate the effect of 0.5 mm larger donor corneal size on IOP following penetrating keratoplasty.Methods
Patients were divided into two groups: group I was phakic and group II consisted of aphakic and pseudophakic patients. The same surgical technique was used for obtaining and suturing the donor graft. The viscoelastics and the postoperative regime also remained the same in all cases. IOP was measured by the rebound tonometer.Results
The incidence of postoperative raised IOP in the first seven days in the phakic group was found to range from 16 mmHg to 25 mmHg and IOP in the aphakic/pseudophakic group ranged from 16 mmHg to 42 mmHg. The IOP in the phakic group after three weeks of surgery was around 12.3 mmHg and that in the pseudophakic/aphakic group was 14.8 mmHg-16.2 mmHg. In aphakic patients, IOP was controlled in the first six months with eyedrops Timolol 0.5% and tablet acetazolamide which was given only for short periods. IOP settled to <12 mmHg with timolol 0.5% after six months. In the pseudophakic patients, IOP became normal by six months. These were inclusive of patients who had undergone anterior reconstruction and/or vitrectomy.Conclusion
The study proves that keeping the donor corneal size 0.5 mm larger does not affect IOP and that aphakia itself is a factor responsible for rise of IOP due to anterior chamber angle compression. 相似文献75.
Background
A total of 31 cases of effects of high altitude were admitted to a field hospital from a particular sector during the year 2008. This study was hence undertaken to see the efficacy of acclimatisation as well as outline the determinants of acclimatisation. Methods: The study monitored the transients in the acclimatisation period as well as laid down the guidelines to certify their fitness after the acclimatisation period.Result
Almost 4.70% of transients were found unfit to proceed to higher altitudes even after acclimatisation. Tachycardia with oxygen saturation below 90% by digital pulse oximetry were the parameters found to be statistically significant as an indicator to declare a person as not fully acclimatised or otherwise.Conclusion
The administrative authorities must ensure that an individual is fully acclimatized, based on the fitness certificates issued, before being dispatched to their units located in high altitude areas.Key Words: Acclimatisation, Pulse oximetry, High altitude area 相似文献76.
Background Parietal cell H+/K+ATPase activation is essential for optimal proton pump inhibitor (PPI) activity. Succinic acid (SA) was shown to induce gastric acid secretion. VECAM is a combination of omeprazole (OMP) and SA. To compare the effect of once daily bedtime dosing of VECAM 40 and VECAM 20 without food vs OMP 20 mg administered before breakfast on gastric acidity. Methods Open label, randomized, crossover study enrolling 36 healthy subjects comparing the study treatments at steady state for 24 h intragastric pH monitoring. Key Results The median percent time intragastric pH > 4 demonstrated that VECAM 40 was superior to VECAM 20 (65.7%vs 49.1%P < 0.0001) and OMP 20 mg (65.7%vs 47.6%P = 0.005) during 24 h. VECAM 40 was superior to VECAM 20 (52.8%vs 38.8%P = 0.0079) and OMP 20 mg (52.8%vs 27.2%P < 0.0001), and VECAM 20 was superior to OMP 20 mg (38.8 vs 27.2 P = 0.0069) during the nighttime. VECAM 20 and OMP 20 mg were comparable during 24 h. Conclusions & Inferences VECAM 40 and VECAM 20 were significantly better in maintaining intragastric pH > 4 during the nighttime than OMP 20 mg. Succinic acid eliminates the need for a subsequent meal for intragastric pH control by VECAM. 相似文献
77.
Rohit Tewari VS Nijhawan MN Mishra Puja Dudeja TK Salopal 《Medical Journal Armed Forces India》2012,68(1):53-57
Background
In present day atherosclerosis is perceived as a chronic inflammatory vascular condition and infectious diseases are believed to contribute to its pathophysiology. In this context, the microorganisms which are believed to play a role in the pathophysiology include Chlamydia pneumoniae, cytomegalovirus (CMV), and Helicobacter pylori.Method
A case control study (retrospective) was conducted over a two-year period. The study population was divided into two groups with 200 individuals in each group. The first group comprised cases of coronary artery disease (CAD) and the second comprised healthy controls selected from the general population after matching for age and sex. Enzyme-linked immunosorbent assay (ELISA) was done for immunoglobulin (IgG) antibodies to H. pylori, C. pneumonia, and CMV. They were also evaluated for conventional risk factors including hypertension, diabetes, obesity, and dyslipidaemia. Epi Info™ version 6 six software was used for analysis of data. Odds ratio, χ2 for trend and multiple logistic regression analysis were used to find out statistically significant results.Results
Seropositivity for H. pylori was present in 119 patients of CAD (59.5%) but it was present in only 76 controls (38%) (P = 0.001). There was a statistically significant association between seropositivity for H. pylori and CAD. There was no statistically significant association between C. pneumoniae and CMV seropositivity with CAD. Multiple logistic regression analysis was done with CAD as the outcome (dependent variable). The predictor covariates (independent) variables were seropositivity to H. pylori, C. pneumoniae, and CMV, hypertension, obesity, diabetes, and dyslipidaemia. It was found that seropositivity to H. pylori, hypertension, obesity, and dyslipidaemia were significant risk factors for CAD.Conclusion
Our study shows an association between IgG antibody response to H. pylori and CAD. Multiple logistic regression analysis showed that this association was retained even on comparison with the other risk factors.Key Words: Chlamydia pneumoniae, coronary artery disease, cytomegalovirus, Helicobacter pylori 相似文献78.
M Welker J Salanitri VS Deshpande SM Shea D Li FS Pereles 《Journal of Medical Imaging and Radiation Oncology》2006,50(2):114-121
Coronary artery anomalies are uncommon entities that may be associated with sudden death. Because of its 2‐D projection imaging nature, conventional X‐ray coronary angiography may not accurately delineate the origins and course of aberrant coronary arteries with respect to the great vessels. Non‐invasive, cross‐sectional imaging techniques such as coronary CT angiography and magnetic resonance angiography are increasingly used in clinical practice to diagnose coronary artery anomalies. Although this study reviews coronary artery anatomy and selected anomalies as seen with true fast imaging with steady‐state precession magnetic resonance angiography, the information provided is equally applicable to electrocardiogram‐gated coronary CT angiography. 相似文献
79.
80.