%0 Journal Article %T Black Colouration of the Knee Articular Cartilage after Spontaneously Recurrent Haemarthrosis %A Daichi Ishimaru %A Haruhiko Akiyama %A Hiroyasu Ogawa %A Kazu Matsumoto %J Archive of "Case Reports in Orthopedics". %D 2016 %R 10.1155/2016/1238392 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4880683/