@article{7dcd69b158b54f8f9a89ab432d44d12a,
title = "Crepitus is a first indication of patellofemoral osteoarthritis (and not of tibiofemoral osteoarthritis).",
author = "D. Schiphof and \{van Middelkoop\}, M. and \{de Klerk\}, B.M. and E.H.G. Oei and A. Hofman and B.W. Koes and H.H. Weinans and S.M.A. Bierma-Zeinstra",
year = "2014",
language = "Undefined/Unknown",
volume = "22",
pages = "631--638",
journal = "Osteoarthritis and Cartilage",
issn = "1063-4584",
publisher = "W.B. Saunders Ltd",
number = "5",
}