BRITTBERG M ET AL: "Treatment of deep cartilage defects in the knee with autologous chondrocyte transplantation.", THE NEW ENGLAND JOURNAL OF MEDICINE 6 OCT 1994 LNKD- PUBMED:8078550, vol. 331, no. 14, 6 October 1994 (1994-10-06), pages 889-895, ISSN: 0028-4793 (B1)

KOLETTAS E ET AL: "Expression of cartilage-specific molecules is retained on long-term culture of human articular chondrocytes" JOURNAL OF CELL SCIENCE, CAMBRIDGE UNIVERSITY PRESS, LONDON, GB, vol. 108, no. PART 5, 1 May 1995 (1995-05-01), pages 1991-1999, XP002465823 ISSN: 0021-9533 (B1)

WO-A-2006/094836 (B1)

RAPKO ET AL: "P195 Identification of dedifferentiated chondrocytes using gene expression - the dsc assay" OSTEOARTHRITIS AND CARTILAGE, BAILLIERE TINDALL,, vol. 15, 5 September 2007 (2007-09-05), page B137, XP022221713 LONDON, GB ISSN: 1063-4584 (B1)

STOKES ET AL: "Assessment of the gene expression profile of differentiated and dedifferentiated human fetal chondrocytes by microarray analysis" ARTHRITIS AND RHEUMATISM, LIPPINCOTT, PHILADELPHIA, US, vol. 46, no. 2, 1 February 2002 (2002-02-01), pages 404-419, XP002253145 ISSN: 0004-3591 (B1)

MARLOVITS S ET AL: "Differential gene-expression of human articular chondrocytes and human fibroblasts in two- and three-dimensional cell culture" FASEB JOURNAL, FED. OF AMERICAN SOC. FOR EXPERIMENTAL BIOLOGY, BETHESDA, MD, vol. 15, no. 4, 7 March 2001 (2001-03-07), page A34, XP008021552 ISSN: 0892-6638 (B1)