3-methylcrotonyl-CoA carboxylase deficiency in an infant with cardiomyopathy, in her brother with developmental delay and in their asymptomatic father. - Visser,G.; Suormala,T.; Smit,G.P.; Reijngoud,D.J.; Bink-Boelkens,M.T.; Niezen-Koning,K.E. (Eur J Pediatr, 2000)