TY - JOUR T1 - Comparative study of periodicity estimation methods using ultrasonic signals JO - Research on Biomedical Engineering A1 - Kauati, Adriana A1 - Pereira, Wagner Coelho de Albuquerque A1 - Campos, Marcello Luiz Rodrigues SN - 2446-4740 UL - 10.1590/2446-4740.03815 VL - 32 Y1 - 2016 PB - Brasil ER -