[1] Univ Penn, Sch Med, Ctr Sleep & Circadian Neurobiol, Philadelphia, PA 19104 USA
[2] Washington Univ, Sch Med, Dept Anat & Neurobiol, St Louis, MO 63110 USA
[3] Univ Wisconsin, Waisman Ctr, Madison, WI 53705 USA
[4] Univ Wisconsin, Dept Biochem, Madison, WI 53705 USA
[5] Scarab Genom LLC, Madison, WI USA