1. Micieli JA, Zurakowski D, Ahmed IK. Impact of visors on eye and orbital injuries in the National Hockey League. Can J Ophthalmol.
2. Bodychecking rules and concussion in elite hockey;Donaldson;PLoS ONE,2013
3. Easterbrook M. Eye injuries in professional hockey players – an epidemic. Team Physician’s National Hockey League. Philadelphia, Pa. January 16, 1992
4. Easterbrook M. The hockey visor: pros and cons. National Hockey League Physician’s Team Meeting; Montreal, Ont.; February 5, 1993.
5. Easterbrook M. Mandatory helmets and visors in the NHL. National Hockey League Physician’s Meeting; New York, N.Y.; January 21, 1994.