Vijayakumar, R.; Abd Gani, S. S.; Mohd Mokhtar, N. F. ANTI-ELASTASE, ANTI-COLLAGENASE AND ANTIMICROBIAL ACTIVITIES OF THE UNDERUTILIZED RED PITAYA PEEL: AN IN VITRO STUDY FOR ANTI-AGING APPLICATIONS. Asian J Pharm Clin Res 2017, 10, 251-255.