title: Letter to the editor.
authors.forename: Abraham
authors.initials: A
authors.lastname: Nyska
authors.forename: Margarita M
authors.initials: MM
authors.lastname: Gruebbel
mesh_terms: D000818:Animals; D005843:Geography; D006331:Heart Diseases / Q000209:etiology* / Q000473:pathology* / Q000662:veterinary*; D008252:Macaca fascicularis; D008435:Mauritania; D008992:Monkey Diseases / Q000209:etiology* / Q000473:pathology*