@article{doi:10.1302/0301-620X.73B4.2071649,
author = {Futami, T and Kasahara, Y and Suzuki, S and Ushikubo, S and Tsuchiya, T},
title = {Ultrasonography in transient synovitis and early Perthes' disease},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {73-B},
number = {4},
pages = {635-639},
year = {1991},
doi = {10.1302/0301-620X.73B4.2071649},
url = {https://doi.org/10.1302/0301-620X.73B4.2071649}
}