1.
Zhang X, Chen Y, Chen Y, Zhu W, Tang C, Lamm S, et al. Polyethylene glycol combined with lactulose has better efficacy than polyethylene glycol alone in bowel preparation before colonoscopy: A meta-analysis. Clinics [Internet]. 2023 Apr. 3 [cited 2024 Dec. 3];78:100172. Available from: https://periodicos.usp.br/clinics/article/view/214056