Combien de personnes affecte le Syndrome de Cohen? Est-ce que cela a la même prévalence chez les hommes et les femmes ? Et dans les différents pays ?
Original
It's considered rare because it has so many variables..because of its rarity there is not enough data to confirm any prevalence..it effects both boys and girls equally ...Being genetic means from birth..you don't catch or develop it..you are born with Cohen's Syndrome..