Enzymes for scientific research and development in the medical field; antibodies for medical laboratory use, for the purpose of expansion, selection, quality control and implantation of human, in vivo, cartilage forming cells including stem cell preparations of stem cell implants; quality control kits consisting primarily of monoclonal antibodies for use in disease testing and ligands or oligonucleotide primers and DNA chips for scientific or research use; quality control kits consisting prim...