TY  - JOUR
T1  - M'danao tribesmen don't need viagra
JF  - Philippine Star
A1  - Echeminada, Perseus
LA  - English
YR  - 1998
UL  - https://tuklas.up.edu.ph/Record/IPN-00000059634
KW  - Viagra (Drug)
KW  - Impotence : Treatment
ER  -