B. M. . Lima, P. S. F. . Santos, and A. C. F. de . Jesus, “Analysis of nortriptyline’s prophylaxis on hemodialysis headache patients - a pilot study”, Headache Med, vol. 7, no. 1, pp. 23–27, Mar. 2016, doi: 10.48208/HeadacheMed.2016.6.