type i collagen was 70-75 % , type iii collagen was 18-21 % , and type v was 6-8 % of the total of these collagens at all gestational ages tested , compared to 85-90 % type i , 8-11 % type iii , and 2-4 % type v in adult skin .
C0041455
type i collagen
C0009325
collagens