Pärnu Hospital

East Tallinn Central Hospital

West Tallinn Central Hospital

North Estonia Medical Centre

Tartu University Hospital

University Hospital of Ioannina, Second Department of Internal Medicine

Ippokratio General Hospital, Second Department of Internal Medicine

AHEPA University Hospital, First Propedeutic Department of Internal Medicine

Laiko General Hospital, Cardiovascular Prevention & Research Unit, Clinic & Laboratory of Pathophysiology

University Hospital of Larissa, Department of Internal Medicine