Abdolreza Agahtehrani

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CD4+ lymphocytes constitute one of the major cell targets for human immunodeficiency virus type 1 (HIV-1) infection. The eventual loss of CD4+ lymphocytes contributes substantially to the pathogenesis of HIV-1 and development of acquired immunodeficiency syndrome (AIDS). CD4+ lymphocytes consist of the subgroups Th1, Th2, and Th0, which differ in their(More)
The correct timing of aortic valve replacement in chronic aortic stenosis or regurgitation is a very important and sometimes difficult task for physicians caring for patients with aortic valve disease. In this review, we will present the current available literature regarding the appropriate management of these patients.
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