[1] Univ Sao Paulo, Ribeirao Preto Med Sch, Dept Pediat, Ribeirao Preto, Brazil
[2] Univ Sao Paulo, Inst Math & Comp Sci, Sao Carlos, Brazil
[3] Ifsp Araraquara, Fed Inst Sao Paulo, Araraquara, SP, Brazil
[4] Dalhousie Univ, Fac Comp Sci, Halifax, NS, Canada
[5] Univ Sao Paulo, Ribeirao Preto Med Sch, Dept Genet, Ribeirao Preto, Brazil