Donald S Crain, MD iyo Michael T Marshall, MD iyo John E Kehoe, MD:
"Waxay u muuqataa in uu jiro xidhiidh ka dhexeeya isticmaalka sawirada qaawan iyo cillad la'aanta galmada ee ragga kuwaas oo soo sheega in ay doorbidayaan siigaysashada sawirada qaawan halkii ay ka ahaan lahaayeen galmada."