1 Pediatric Institute of Southern Switzerland, Ospedale San Giovanni, Bellinzona, Switzerland.
2 Università della Svizzera Italiana, Lugano, Switzerland.
3 Pediatric Cardiology Unit, Department of Pediatrics, Centre Hospitalier Universitaire Vaudois and University of Lausanne, 1010, Lausanne, Switzerland. webmaster@sebastianolava.ch.
4 Division of Clinical Pharmacology and Toxicology, Institute of Pharmacological Sciences of Southern Switzerland, Ente Ospedaliero Cantonale, Lugano, Switzerland. webmaster@sebastianolava.ch.
5 Pediatric Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
6 Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy.