[1] Ain Shams Univ, Fac Med, Cairo, Egypt
[2] Internal Med Allegheny Gen Hosp, Pittsburgh, PA USA
[3] Univ Med & Pharm, Ho Chi Minh City, Vietnam
[4] Univ Tripoli, Tripoli, Libya
[5] Egyptian Natl Blood Transfus Serv, Cairo, Egypt
[6] McMaster Univ, Fac Hlth Sci, Hamilton, ON, Canada
[7] Ho Chi Minh City Oncol Hosp, Ho Chi Minh City, Vietnam
[8] Ain Shams Univ, Inst Med, Dept Otorhinolaryngol, Cairo, Egypt
[9] Nagasaki Univ, Inst Trop Med, Dept Clin Prod Dev, Nagasaki, Japan