Fig. 1From: Prevention of Morbidity in Sickle Cell Disease (POMS2a)—overnight auto-adjusting continuous positive airway pressure compared with nocturnal oxygen therapy: a randomised crossover pilot study examining patient preference and safety in adults and childrenDesign of the POMS2a randomised crossover study of auto-adjusting continuous positive airways pressure (APAP) and nocturnal oxygen therapy (NOT) in sickle cell anaemiaBack to article page