Background: Recurrent respiratory tract infections are common cause of morbidity globally. Some congenital heart diseases that cause increased pulmonary blood flow is a common predisposing factor for a recurrent Respiratory tract infection (RTI) . the rate of recurrent RTI is estimated to be 1. 3 episodes per child per year Objectives: The present study helps to determine the underlyi... https://www.nacrack.com/hot-choice-Open-Box-Verona-Wig-by-BelleTress-Heat-Friendly-Synthetic-Hair-Average-Cap-Buttered-Toast-R-great-buy/