Pimenta, C.A. de M. and Koizumi, M.S. 1989. The effects of body positions on blood gas exchange in patients with unilateral lung disease — part I. Revista da Escola de Enfermagem da USP. 23, 3 (Dec. 1989), 205–221. DOI:https://doi.org/10.1590/0080-6234198902300300205.