VAKAMULLU, V.; MISHRA, M. Variational mode decomposition based automated fetal PCG denoising and extraction. International journal of health sciences, [S. l.], v. 6, n. S3, p. 6567–6579, 2022. DOI: 10.53730/ijhs.v6nS3.7469. Disponível em: https://sciencescholar.us/journal/index.php/ijhs/article/view/7469. Acesso em: 12 jun. 2026.