APA (7th ed.) Citation

Alejandro S. de Leon, M. Evidence-based medicine: What it is, what it is not. Philippine Academy of Ophthalmology.

Chicago Style (17th ed.) Citation

Alejandro S. de Leon, MD. Evidence-based Medicine: What It Is, What It Is Not. Philippine Academy of Ophthalmology.

MLA (9th ed.) Citation

Alejandro S. de Leon, MD. Evidence-based Medicine: What It Is, What It Is Not. Philippine Academy of Ophthalmology.

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