In vivo imaging of MMP‐13 activity using a specific polymer‐FRET peptide conjugate detects early osteoarthritis and inhibitor efficacy Tekijä Duro‐Castano, A, Lim, N, Tranchant, I, Amoura, M, Beau, F, Wieland, H, Kingler, O, Herrmann, M, Nazaré, M, Plettenburg, O, Dive, V, Vicent, M, Nagase, H