2017 – Launching of the YAFS4 Book 2013 Young Adult Fertility and Sexuality Study in the Philippines You are here: Home » Photos » 2017 – Launching of the YAFS4 Book 2013 Young Adult Fertility and Sexuality Study in the Philippines March 22, 2023March 22, 2017 by DRDF Launching of the YAFS4 Book 2013 Young Adult Fertility and Sexuality Study in the Philippines _ YAFS4 Regional Further Studies Post-Millenial Filipinos Renewed Hope vs Risk (23 March 2017)