Riva Barbara, Restano Lucia, Gelmetti Carlo
Department of Pediatric Dermatology, Institute of Dermatological Sciences, IRCCS Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena, Milan, Italy.
Pediatr Dermatol. 2009 Jul-Aug;26(4):473-4. doi: 10.1111/j.1525-1470.2009.00957.x.