Magherini A, Schmidtlein C, Urciuolo A, Tomassini C R, Calzolari A, Rorani C, Machetti G, Martinelli R, Vizzoni L, Bartolozzi G
Department of Pediatrics, University of Florence, Italy.
Am Heart J. 1988 Jul;116(1 Pt 1):185-7. doi: 10.1016/0002-8703(88)90266-9.