1. Excessive daytime sleepiness in the sleep apnea syndrome;Dement,1978
2. Brain dysfunction in mild to moderate hypoxia;Gibson;Am J Med,1981
3. Sleep apnea: A psychiatric perspective;Singh,1984
4. Protriptyline in obstructive sleep apnea;Brownell,1982
5. Obesity and hormonal factors in sleep and sleep apnea;Wittels,1985