Ankara (Bilkent) City Hospital, Ankara, Turkey
Gazi Yasargil Woman and Child Hospital, Diyarbakir, Turkey
Gaziantep University Hospital, Gaziantep, Turkey
Tanta University, Tanta, Egypt
Alexandria University Hospitals - Semouha, Alexandria, Egypt
Universidade Federal do Ceará, Fortaleza, Brazil
Hospital Pequeno Príncipe, Curitiba, Brazil
Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Brazil
CardioVaskuläres Centrum, Frankfurt, Germany