690 - ASSOCIATIONS BETWEEN PRENATAL EXPOSURE TO PFAS AND ORGANOCHLORINE CHEMICALS AND EARLY PUBERTAL DEVELOPMENT: A METABOLOMIC STUDY IN THREE EUROPEAN COHORTS
S. López de Calle, C. Freire, A. Anguita-Ruiz, M. Kadawathagedara, C. Thomsen, M. Vrijheid, L. Maitre, A. Irizar, G. Cano-Sancho
