全文获取类型
收费全文 | 602篇 |
免费 | 47篇 |
学科分类
医药卫生 | 649篇 |
出版年
2023年 | 2篇 |
2022年 | 2篇 |
2021年 | 35篇 |
2020年 | 15篇 |
2019年 | 21篇 |
2018年 | 32篇 |
2017年 | 17篇 |
2016年 | 13篇 |
2015年 | 24篇 |
2014年 | 31篇 |
2013年 | 35篇 |
2012年 | 58篇 |
2011年 | 61篇 |
2010年 | 25篇 |
2009年 | 23篇 |
2008年 | 37篇 |
2007年 | 54篇 |
2006年 | 32篇 |
2005年 | 25篇 |
2004年 | 19篇 |
2003年 | 19篇 |
2002年 | 16篇 |
2001年 | 5篇 |
2000年 | 4篇 |
1999年 | 6篇 |
1998年 | 6篇 |
1997年 | 2篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1991年 | 1篇 |
1990年 | 4篇 |
1989年 | 2篇 |
1988年 | 2篇 |
1987年 | 4篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1983年 | 1篇 |
1977年 | 1篇 |
1975年 | 1篇 |
1973年 | 1篇 |
1969年 | 2篇 |
1968年 | 2篇 |
1944年 | 2篇 |
1943年 | 1篇 |
1942年 | 1篇 |
排序方式: 共有649条查询结果,搜索用时 15 毫秒
1.
2.
3.
R K Maheshwari B D Gupta M Karunakaran S S Panpalia K C Bafna 《Indian pediatrics》1987,24(12):1073-1076
4.
Bindu Nayak Kenneth Burman 《Endocrinology & Metabolism Clinics of North America》2006,35(4):663-86, vii
Thyroid storm represents the extreme manifestation of thyrotoxicosis as a true endocrine emergency. Although Grave's disease is the most common underlying disorder in thyroid storm, there is usually a precipitating event or condition that transform the patient into life-threatening thyrotoxicosis. Treatment of thyroid storm involves decreasing new hormone synthesis, inhibiting the release of thyroid hormone, and blocking the peripheral effects of thyroid hormone. This multidrug, therapeutic approach uses thionamides, iodine, beta-adrenergic receptor antagonists, corticosteroids in certain circumstances, and supportive therapy. Certain conditions may warrant the use of alternative therapy with cholestyramine, lithium carbonate, or potassium perchlorate. After the critical illness of thyroid storm subsides, definitive treatment of the underlying thyrotoxicosis can be planned. 相似文献
5.
Hypoparathyroidism occurs due to insufficient production of parathyroid hormone to maintain extracellular calcium levels within the normal range. The acute clinical symptoms and signs of hypoparathyroidism are those of hypocalcaemia, ranging from tingling and numbness of limb extremities to intractable seizures. Often seizures are mistaken for epilepsy. Though hypoparathyroidism is not uncommon, the diagnosis is often missed due to its unusual clinical manifestation. This is the first documented report with vitamin D, Parathormone levels and urinary biochemical parameters from India. We present two cases of hypoparathyroidism who presented with seizures along with a short review of literature. 相似文献
6.
7.
Kudrimoti J Bindu R Hayatnagarkar N Bhople K 《Indian journal of pathology & microbiology》2004,47(2):257-258
Primary malignant melanoma of cervix is a rare entity. A case of primary malignant melanoma of cervix presented with vaginal discharge and black colored growth over cervix. Histology showed malignant pleomorphic cells with melanin pigment in the cytoplasm. 相似文献
8.
Are three sputum acid-fast bacillus smears necessary for discontinuing tuberculosis isolation? 下载免费PDF全文
Mathew P Kuo YH Vazirani B Eng RH Weinstein MP 《Journal of clinical microbiology》2002,40(9):3482-3484
To evaluate the efficacy of three sputum acid-fast bacillus (AFB) smears to rule out pulmonary tuberculosis, sputum AFB smear and culture results were analyzed at two university-affiliated teaching hospitals. The negative predictive value of the smear increased by only 0.2% on days 2 and 3 each, indicating that in low-prevalence populations, there is limited value in requiring three negative sputum AFB smears before discontinuing tuberculosis isolation. 相似文献
9.
10.
A strong promoter of bacteriophage MB78 does not have minus 35 consensus sequence although it has a TGn motif immediately
upstream of minus 10 sequence as well as the AT rich UP element. It is efficiently recognised by the sigma 70 RNA polymerase,
however, a phage-specific factor competes with sigma 70 RNA polymerase for binding to this region, the binding of the factor
being stronger than that of the polymerase. Contrary to the reports in the literature the polymerase appears not to bind to
the UP element whereas the phage-specific factor does. The latter seems to be involved in the regulation of the promoter activity.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献