Derliz Mereles comes from Asunción, Paraguay, and is since 1993 research fellow, as well as since 2009 Head of the Echocardiography Laboratory of the Cardiology Department of the University Hospital of Heidelberg. He studied medicine in Paraguay. He attained in 1987 the MD titel from the National University of Asunción and in 2004 the titel Dr. med. from the Ruprecht-Karls-University Heidelberg. The titel Specialist in Cardiology was granted him from the Paraguayan Medical Association in 1999.