Nonoperative vs operative management of uncomplicated acute appendicitis a systematic review and meta-analysis - Leite, Rodrigo Moises de Almeida; Seo, Dong Joo; Gomez-Eslava, Barbara; Hossain, Sigma; Lesegretain, Arnaud; Souza, Alexandre Venancio de; Bay, Camden Phillip; Zilberstein, Bruno; Marchi, Evaldo; Machado, Rogerio Bonassi (Jama surgery, 2022)