@article{doi:10.1302/0301-620X.75B2.8444940,
author = {Takatori, Y and Kokubo, T and Ninomiya, S and Nakamura, S and Morimoto, S and Kusaba, I},
title = {Avascular necrosis of the femoral head. Natural history and magnetic resonance imaging},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {75-B},
number = {2},
pages = {217-221},
year = {1993},
doi = {10.1302/0301-620X.75B2.8444940},
url = {https://doi.org/10.1302/0301-620X.75B2.8444940}
}