TY - JOUR AU - Macdonald, DA AU - Hutton, JF AU - Kelly, IG DO - doi:10.1302/0301-620X.71B2.2925750 UR - https://doi.org/10.1302/0301-620X.71B2.2925750 TI - Maximal isometric patellofemoral contact force in patients with anterior knee pain T2 - The Journal of Bone & Joint Surgery British Volume VL - 71-B IS - 2 PY - 1989 SP - 296 EP - 299 ER -