Branucci, R. T. M., V. de Lelis, G. K. . Westenhofen, I. Fortini, and M. F. P. . Peres. “Intra-Rater Reliability of Pressure Pain Threshold Using a Digital Algometer”. Headache Medicine, vol. 13, no. Supplement, Oct. 2022, p. 20, doi:10.48208/HeadacheMed.2022.Supplement.20.