Tapangco, M. P. M., Destriza, W.-N., Dimacali, B. D., & Olveda, M. B. (2012). Topical Cepae Extract-Heparin Sodium-Allantoin Gel versus Placebo on Hypertrophic Thyroidectomy Scars: A Randomized, Double- Blinded, Split-Scar Controlled Trial. Philippine Journal of Otolaryngology Head and Neck Surgery, 27(2), 12–16. https://doi.org/10.32412/pjohns.v27i2.521