@article{doi:10.1302/0301-620X.99B8.BJJ-2016-1282.R1, author = {Perry, D. C. and Thomson, C. and Pope, D. and Bruce, C. E. and Platt, M. J.}, title = {A case control study to determine the association between Perthes’ disease and the recalled use of tobacco during pregnancy, and biological markers of current tobacco smoke exposure}, journal = {The Bone & Joint Journal}, volume = {99-B}, number = {8}, pages = {1102-1108}, year = {2017}, doi = {10.1302/0301-620X.99B8.BJJ-2016-1282.R1}, url = {https://doi.org/10.1302/0301-620X.99B8.BJJ-2016-1282.R1} }