Validation of a portable respiratory monitoring system for the diagnosis of obstructive sleep apnea in patients with chronic obstructive pulmonary disease: a crossectional study - Silva, Marcus Vinicius F. P.; Lustosa, Thais Clementino; Lins-Filho, Ozeas Lima; Climaco, Danielle Cristina Silva; Patriota, Tarcya Couto; Magalhaes, Jessica Amorim; Queiroga Junior, Fernando; Cabral, Marilia Montenegro; Medeiros, Ana Kelley; Drager, Luciano Ferreira (Sleep Science, 2024)