M. Hauge

Colour vision deficiency in one of two presumably monozyǵotic twins with secondary amenorrhoea

BY J. PHILIP, C. H. VOGELIUS ANDERSEN, V. DREYER, E. FREIESLEBEN, H. GORTLER, M. HAUGE, F. KISSMEYER-NIELSEN, L. STAUB NIELSEN, M. PERS, E. B. ROBSON, A. SVEJGAARD AND B. SORENSEN From the Chromosome Laboratory, Department of Obstetrics and Gynaecology A-I, the Clinic of Aviation Ophthalmology, the Blood-Bank and the Department of Plmtic Surgery, Rigshospitalet, University of Copenhagen. And from the Department of Anthropology, Institute of Forensic Medicine and the Institute of Human Genetics, University of Copenhagen, and the Medical Research Council Human Biochemical Genetics Unit, University College London, and from the Blood-Bank and Blood Grouping Laboratory, University Hospital, Aarhzcs