Coculture of Human Hair Follicles and Dermal Papillae in Type I Collagen Gel December 1991 in “ Annals of the New York Academy of Sciences ” Seiji Arase, Yasushi Sadamoto, Shouji Katoh 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 nyaspubs.onlinelibrary.wiley.com →