1. EISENSTEIN, R, RESISTANCE OF CERTAIN TISSUES TO INVASION - PENETRABILITY OF EXPLANTED TISSUES BY VASCULARIZED MESENCHYME, AMERICAN JOURNAL OF PATHOLOGY 73: 765 (1973).
2. EISENSTEIN, R, RESISTANCE OF CERTAIN TISSUES TO INVASION .3. CARTILAGE EXTRACTS INHIBIT GROWTH OF FIBROBLASTS AND ENDOTHELIAL CELLS IN CULTURE, AMERICAN JOURNAL OF PATHOLOGY 81: 337 (1975).
3. GOTHLIN, G, CLIN ORTHOPAEDICS 120: 201 (1976).
4. HOLTROP, M.E., CLIN ORTHOPAEDICS 123: 177 (1977).
5. HORTON, J.E., MACROPHAGE-LYMPHOCYTE SYNERGY IN PRODUCTION OF OSTEOCLAST ACTIVATING FACTOR, JOURNAL OF IMMUNOLOGY 113: 1278 (1974).