Transtornos respiratórios do sono e fibromialgia

Effects of progesterone on sleep: a possible pharmacological treatment for sleep-breathing disorders? 

Sleep disturbances, oxidative stress and cardiovascular risk parameters in postmenopausal women complaining of insomnia

A double-blind, placebo-controlled, crossover study of sildenafil in obstructive sleep apnea

Sleep disturbance induced by substance P in mice