title: Commentary.
authors.affiliation: Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA. olsont@email.chop.edu
authors.forename: Timothy S
authors.initials: TS
authors.lastname: Olson
authors.forename: Monica
authors.initials: M
authors.lastname: Bessler
mesh_terms: D000741:Anemia, Aplastic / Q000175:diagnosis*; D006200:Hair Color; D006801:Humans; D008297:Male