Prevalence of radiographic findings of femoroacetabular impingement in the Japanese population. - Kensuke Fukushima; Katsufumi Uchiyama; Naonobu Takahira; Mitsutoshi Moriya; Takeaki Yamamoto; Moritoshi Itoman; Masashi Takaso (Journal of Orthopaedic Surgery & Research, 2014)