[1] FUNDACAO FED FAC CIENCIAS MED PORTO ALEGRE,DEPT ENDOCRINOL & NUTROL,PORTO ALEGRE,BRAZIL
[2] UNIV FED SANTA CATARINA,DEPT PEDIAT,BR-88000 FLORIANOPOLIS,SC,BRAZIL
[3] UNIV FED RIO GRANDE SUL,DEPT BIOCHEM,BR-90000 PORTO ALEGRE,RS,BRAZIL
[4] UNIV FED RIO GRANDE SUL,DEPT PEDIAT & PUERICULTURE,BR-90000 PORTO ALEGRE,RS,BRAZIL
[5] UNIV FED RIO GRANDE SUL,HOSP PORTO ALEGRE,MED GENET UNITS,BR-90000 PORTO ALEGRE,RS,BRAZIL
[6] UNIV FED RIO GRANDE SUL,HOSP PORTO ALEGRE,PEDIAT SERV,BR-90000 PORTO ALEGRE,RS,BRAZIL
[7] UNIV SAO PAULO,FAC MED RIBEIRAO PRETO,DEPT GENET,BR-14100 RIBEIRAO PRETO,SP,BRAZIL