Is There a Difference between the Preoperative and Postoperative Serum Levels of Interleukin-6 and Tumor Necrosis Factor-a in Children Submitted to Adenotonsillectomy? - Ribeiro de Souza, Jose Neto; Feitosa de Castro, Fernanda de Oliveira; Lemes de Souza, Camila; Romanholo El Cheikh, Mikhael; Lisboa Ramos, Hugo Valter; Gonçalves da Fonseca, Simone; Candido Costa, Claudiney (International Archives of Otorhinolaryngology, 2022)