title: In memory of Professor A. Franceschetti (1896-1968).
authors.forename: D
authors.initials: D
authors.lastname: Klein
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics / Q000473:pathology; D003117:Color Vision Defects / Q000235:genetics / Q000266:history; D005826:Genetics, Medical / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D009885:Ophthalmology / Q000266:history*; D013557:Switzerland