Bone regeneration under the influence of a bone morphogenetic protein (BMP) beta tricalcium phosphate (TCP) composite in skull trephine defects in dogs. - Urist,M.R.; Nilsson,O.; Rasmussen,J.; Hirota,W.; Lovell,T.; Schmalzreid,T.; Finerman,G.A. (Clin Orthop, 1987)