Perbandingan kapasitas osteogenesis sel punca mesenkimal spm sumsum tulang dengan spm adiposa pada tatalaksana defek tulang kritis di tikus sprague dawley: Peran bone morphogenetic protein 2 dan bone morphogenetic protein receptor II = Comparison of osteogenic capacity between bone marrow and adipose mesenchymal stem cells on treatment of critical size bone defect in sprague dawley rats: Role of bone morphogenetic protein 2 and bone morphogenetic protein receptor II