title: Circasemicentennial Season's Appreciations.
authors.affiliation: Halberg Chronobiology Center, University of Minnesota, 715 Mayo Building, 420 Delaware St. S.E., Minneapolis, MN 55455, USA.
authors.forename: Franz
authors.initials: F
authors.lastname: Halberg
authors.forename: Germaine
authors.initials: G
authors.lastname: Cornélissen
authors.forename: Naoto
authors.initials: N
authors.lastname: Burioka
authors.forename: George
authors.initials: G
authors.lastname: Katinas
authors.forename: Mary
authors.initials: M
authors.lastname: Sampson
authors.forename: Othild
authors.initials: O
authors.lastname: Schwartzkopff