sonja prcic department of dermatovenereology, institute for child and youth health care of vojvodina, novi sad, serbia jelena tomić department of immunology and allergology, institute for child and youth health care of vojvodina, novi sad, serbia slobodanka petrović department of pulmology, institute for child and youth health care of vojvodina, novi sad, serbia anica radulović department of dermatovenereology, institute for child and youth health care of vojvodina, novi sad, serbia verica djuran clinic of dermatovenereologic diseases, clinical centre of vojvodina, novi sad, serbia zorica gajinov clinic of dermatovenereologic diseases, clinical centre of vojvodina, novi sad, serbia

Pamela D Luttges David F Retamal Michael Y Spencer Flavio A Carrión Viviana M Valenzuela Sara V Navarro Mónica L De Cornejo