Power of Portable and Digital Phonostethoscope Designed in Iran in Diagnosis of Valvular Heart Diseases

S. Shahbaazi, M.R. Biraanvand, Z. Vahdat Shariatpanaahi, M. Vahdat Shariatpanaahi, L. Gachkaar and A.R. Abadi

Journal of Medical Sciences 7 ( 4 ): 704 - 706 , 2007