[1] Hosp Clin Porto Alegre, Med Genet Serv, Porto Alegre, RS, Brazil
[2] Grp Hosp Conceicao, Childrens Hosp, Med Genet Unit, Porto Alegre, RS, Brazil
[3] Univ Fed Mato Grosso, Dept Pediat, Fac Med, Cuiaba, Brazil
[4] Inst Mexicano Seguro Social, Genet Div, Ctr Invest Biomed Occidente, Guadalajara, Mexico
[5] Inst Mexicano Seguro Social, Pediat Serv, Hosp Reg Zona 46, Guadalajara, Mexico
[6] Hosp Israelita Albert Einstein, Sao Paulo, Brazil