Disclosed is a biodegradable polylactic acid polymer delivery system for delivery of bone morphogenic protein (BMP) to induce formation of new bone in viable tissue. The delivery composition is substantially pure BMP in combination with a biodegradable polylactic acid polymer and it is prepared by admixing...http://www.google.co.uk/patents/US4563489?utm_source=gb-gplus-sharePatent US4563489 - Biodegradable organic polymer delivery system for bone morphogenetic protein
