Aplasia cutis congenita with unique vascular malformation and cranial hypoplasia: a case in a preterm infant - Yasufumi Sakata; Natsumi Fujii; Sadahiro Nomura; Yoshihiro Azuma; Hiroki Hamano; Hidenobu Kaneyasu; Seigo Okada; Kazumasa Takahashi; Shunji Hasegawa (Clinical and Experimental Pediatrics)