Hum Genet. Sep;80(1) XX sex reversal in the American cocker spaniel dog: phenotypic expression and inheritance. Meyers-Wallen VN(1), Patterson DF. Author information: (1)Section of Medical Genetics, School of Veterinary Medicine, University of Pennsylvania, Philadelphia This study was conducted Mangler: escortenorge. Inherited XX sex reversal in the cocker spaniel dog. Selden JR, Moorhead PS, Koo GC, Wachtel SS, Haskins ME, Patterson DF. Nine XX true hermaphrodites and two XX males were discovered in a family of American cocker spaniels. The true hermaphrodites were partially-masculinized females with ovotestes; the XX Mangler: escortenorge. J Am Vet Med Assoc. Jan 1;(1) XX sex reversal in a llama. Wilker CE(1), Meyers-Wallen VN, Schlafer DH, Dykes NL, Kovacs A, Ball BA. Author information: (1)Department of Clinical Sciences, New York State College of Veterinary Medicine, Cornell University, Ithaca A 5-month-old llama was Mangler: escortenorge.