@inbook{inbook58c9671c, title = {Twin relationships in childhood: effects of zygosity, age and sex}, author = {Ferreira, Isabella França and Lucci, Tania Kiehl and David, Vinicius Frayze and Otta, Emma}, year = {2021}, doi = {10.11606/9786587596167}, publisher = {Instituto de Psicologia. Universidade de São Paulo}, journal = {Twin studies in behavioral and health research: current status, prospects and aplications} }