Mazzu-Nascimento, Thiago, Ângela Merice de Oliveira Leal, Carlos Alberto Nogueira-de-Almeida, Lucimar Retto da Silva de Avó, Emanuel Carrilho, and Diego Furtado Silva. “Noninvasive Self-Monitoring of Blood Glucose at Your Fingertips, Literally!: Smartphone-Based Photoplethysmography”. International Journal of Nutrology 13, no. 2 (March 7, 2022): 48–52. Accessed May 19, 2024. https://ijn.zotarellifilhoscientificworks.com/index.php/ijn/article/view/198.