The Use of Human Amnion/Chorion Membrane and Umbilical Cord Grafts for Treatment of a Scalp Wound with Exposed Bone December 2018 in “ Dermatologic Surgery ” Mark J. Zalla, Elliott Campbell We don't know much about this study yet. We're maintaining the world's largest resposity of hair loss research. You can help out the community by sending a PDF of this study here . Not sure how to get a study's PDF? You can email the authors of the study. View this study on journals.lww.com →