На скольких людей повлиял Синдром Коэна? Болезнь одинаково распространена как среди мужчин, так и среди женщин? И в разных странах?
Оригинал
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..