M. F. P. . Peres, B. F. S. . Brandão, P. . Kauffman, J. R. M. de . Campos, F. B. Jatene, and N. . Wolosker, “Headaches and hyperhidrosis: clinical features and outcomes after surgery”, Headache Med, vol. 1, no. 1, pp. 5–8, Mar. 2010.