Canciani M, Barlocco E G, Cazzola G A, Mastella G, de Santi M M, Gardi C, Lungarella G
Pediatric Pulmonary and Cystic Fibrosis Center, Ospedale Borgo Trento, Verona, Italy.
Acta Paediatr Scand. 1988 Jul;77(4):606-7. doi: 10.1111/j.1651-2227.1988.tb10712.x.