Nakano Y, Motegi K
J Maxillofac Surg. 1983 Apr;11(2):58-63. doi: 10.1016/s0301-0503(83)80017-4.
The cleavage lines experimentally produced on the facial region in 30 Japanese cadavers were investigated macroscopically and histologically. The results obtained showed the same directional arrangement of the cleavage lines, fibrous connective tissues (especially the collagen fibres) and blood vessels.