A family study of asymptomatic small bowel Crohn's disease Biancone, Livia Calabrese, Emma Petruzziello, Carmelina Capanna, Alessandra Zorzi, Francesca Onali, Sara Condino, Giovanna Lolli, Elisabetta Ciccacci, Cinzia Borgiani, Paola ... Published in Digestive and Liver Disease