"FIG. 11A is a photograph of a cross section of a bovine bone marrow stromal cell and PLA matrix construct; FIG. 11B is a photograph of a cross section of a bovine bone marrow stromal cell and PLA matrix construct grown in the presence of ??-glycerophosphate and dexamethasone; and FIG. 11C is a photograph of a cross section of a bovine bone marrow stromal cell and PLA/PEG/calcium carbonate matrix c" . . . .