납작머리증 (단두증) brachycephaly와 쏠린머리증 (사두증) plagiocephaly를 헬멭으로 치료한 결과 치료 효과가 별로 없다고 한다 소스: AAP News 12/2014. It is said that treatment of brachycephaly (brachycephaly) and plagiocephaly (plagiocephaly) with flat head (brachycephaly) is not very effective when treated with Helmet. Source: AAP News 12/2014