Dias B de F, Frederico TN, Dangoni Filho I, Peres MFP. Full Head Block for headache treatment: technical description, indications and mechanisms. Headache Med [Internet]. 2019 Jun. 30 [cited 2024 Nov. 23];10(2):37-40. Available from: https://headachemedicine.com.br/index.php/hm/article/view/33