In addition to hedgehog polypeptide, {HEAD ~ a TGF β factor} may also be utilized in {TAIL ~ the method} of the invention 
utilized in
In addition to hedgehog polypeptide , { HEAD ~ a TGF β factor } may also be utilized in { TAIL ~ the method } of the invention
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH