Zagazig University, Egypt, Egypt
Zagazig university hospital , Egypt, Zagazig, Egypt
Policlinico di Bari - Azienda Ospedaliero Universitaria Consorziale Policlinico, Bari, Italy
Sinai Hospital of Baltimore, Baltimore, Maryland, United States
Ain Shams University Maternity Hospital, Cairo, Egypt
Faculty of Dentistry, Mansoura University, Mansoura, Dakahlia, Egypt, Egypt
IRCCS Ospedale San Martino, Genova, GE, Italy
Istituto dermatopatico dell'Immacolata, Roma, Italy
Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
Antalya Training and Research Hospital, Antalya, Muratpasa, Turkey