Chronic fatigue, unrefreshing sleep and nocturnal polysomnography

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

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

Visual and automatic cyclic alternating pattern (CAP) scoring