High risk of obstructive sleep apnea is a risk factor of death censored graft loss in kidney transplant recipients: an observational cohort study.
Szentkiralyi A, Czira ME, Molnar MZ, Kovesdy CP, Remport A, Szeifert L, Vamos EP, Juhasz J, Turanyi CZ, Mucsi I, et al. Sleep Med. 2011 Mar; 12(3):267-73. Epub 2011 Feb 2.