Title: Effects of extended bed rest on human sleep patterns
Description: <a href="http://uf.catalog.fcla.edu/uf.jsp?st=UF028132575%26ix=pm%26I=0%26V=D%26pm=1" rel="nofollow">http://uf.catalog.fcla.edu/uf.jsp?st=UF028132575%26ix=pm%26I=0%26V=D%26pm=1</a>
Subjects: Sleep, Sleeping customs.