info:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F138608%2F2018/PTASSESSMENT OF BIOLOGICAL MATURATION: iinterrelationship among somatic and skeletal indicators; iiagreement between Greulich-Pyle, Tanner-Whitehouse, Fels protocols; iiiethnic variation obtained from European and African SamplesSFRH/BD/138608/2018