@article{doi:10.2106/JBJS.G.00003,
author = {Knutsen, Gunnar and Drogset, Jon Olav and Engebretsen, Lars and Grøntvedt, Torbjørn and Isaksen, Vidar and Ludvigsen, Tom C. and Roberts, Sally and Solheim, Eirik and Strand, Torbjørn and Johansen, Oddmund},
title = {A Randomized Trial Comparing Autologous Chondrocyte Implantation with MicrofractureFindings at Five Years},
journal = {The Journal of Bone & Joint Surgery},
volume = {89},
number = {10},
pages = {2105-2112},
year = {2007},
doi = {10.2106/JBJS.G.00003},
URL = { + http://dx.doi.org/10.2106/JBJS.G.00003},
eprint = {}
}