Digit Regeneration Is Regulated by Msx1 and BMP4 in Fetal Mice (2003), by Manjong Han et al. "Digit Regeneration Is Regulated by Msx1 and BMP4 in Fetal Mice" (2003), by Manjong Han et al. Read more about Digit Regeneration Is Regulated by Msx1 and BMP4 in Fetal Mice (2003), by Manjong Han et al.