![](http://neuropediaclinic.com/wp-content/uploads/2022/07/scarf_sign.jpg?w=399)
https://publications.aap.org/neoreviews/article-abstract/4/8/e199/87007/Historical-PerspectivesNeurologic-Maturation-of?redirectedFrom=fulltext
https://publications.aap.org/neoreviews/article-abstract/4/8/e199/87007/Historical-PerspectivesNeurologic-Maturation-of?redirectedFrom=fulltext