Silveira, Ana Luiza Dorneles da, et al. “Effect of Glucose and Non-Nutritive Sucking on Puncture Pain in Premature Infants: A Crossover Clinical Trial”. Revista Da Escola De Enfermagem Da USP, vol. 55, May 2021, p. e03732, https://doi.org/10.1590/S1980-220X2020018303732.