Guest Editors: Dominique Vervoort (Johns Hopkins Bloomberg School of Public Health, Baltimore, MA, USA); and Marcelo Cardarelli (Inova Children's Hospital, Falls Church, VA, USA)

Guest Editors: Duilio Divisi and Roberto Crisci (University of L'Aquila, Thoracic Surgery Unit, "Giuseppe Mazzini" Hospital, Teramo, Italy)

Guest Editor: Hitoshi Igai (Japanese Red Cross Maebashi Hospital, Maebashi, Gunma, Japan)

Guest Editor: József Furák (University of Szeged, Szeged, Hungary)

Guest Editors: Fernando A. M. Herbella (Escola Paulista de Medicina, Federal University of São Paulo, São Paulo, Brazil); Volha Raznitsyna (Mogilev City Hospital, Mogilev, Belarus)