1.
Lip Trill Effects on Vocal Function, Vocal Pitch, and Harmonics-to-Noise Ratio: A Multiple Baseline Study of Three Vocally Healthy Females. Acta Med Philipp [Internet]. 2023 May 29 [cited 2025 Apr. 28];57(5). Available from: https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/3913