Chinnock McNeil, Anne, Alison Solano Piedra, Rocío González Urrutia, Melissa Jensen Madrigal, and Milena Cerdas Núñez. “Estimation of Weight of Food Portions Depicted in Digital Photographs”. Población y Salud en Mesoamérica 18, no. 1 (June 23, 2020). Accessed April 25, 2024. https://revistas.ucr.ac.cr/index.php/psm/article/view/40767.