Lip Trill Effects on Vocal Function, Vocal Pitch, and Harmonics-to-Noise Ratio: A Multiple Baseline Study of Three Vocally Healthy Females. Acta Medica Philippina, [S. l.], v. 57, n. 5, 2023. DOI: 10.47895/amp.vi0.3913. Disponível em: https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/3913. Acesso em: 28 apr. 2025.