Institution: | (1) Department of Biochemistry, University of Manchester Institute of Science and Technology, Manchester, England;(2) Institute of Science and Technology, The University of Manchester, P.O. Box 88, M60 1QD Manchester, England;(3) Present address: Abteilung Huber, Max Planck Institut für Verhaltensphysiologie, D-8131 Seewiesen, Germany;(4) Present address: Department of Child Health, The Medical School, M13 9PT Manchester, England |