Going beyond X and Y.
Sally
S
Lehrman
D041321:Chromosomes, Human, X; D041322:Chromosomes, Human, Y; D012734:Disorders of Sex Development / Q000235:genetics / Q000601:surgery / Q000628:therapy*; D005260:Female; D005835:Genitalia / Q000002:abnormalities* / Q000601:surgery; D006801:Humans; D008297:Male