APA (7th ed.) Citation

Castillo, R. (2013). Melatonin, aging and cancer. IN Medical files [column]. Philippine Daily Inquirer.

Chicago Style (17th ed.) Citation

Castillo, Rafael. "Melatonin, Aging and Cancer. IN Medical Files [column]." Philippine Daily Inquirer 2013.

MLA (9th ed.) Citation

Castillo, Rafael. "Melatonin, Aging and Cancer. IN Medical Files [column]." Philippine Daily Inquirer, 2013.

Warning: These citations may not always be 100% accurate.