THE YOUNG ADULT FERTILITY AND SEXUALITY (YAFS) STUDY sexuality and reproductive health issues, their antecedents, and.
The Young Adult Fertility and Sexuality (YAFS) Study is a series of national surveys on the Filipino youth, conducted since 1982 by the University of the.
The Young Adult Fertility and Sexuality Study. (YAFS) is a series of cross- sectional surveys on the Filipino youth aged 15-24 conducted since 1982 by the .