%0 Journal Article %A D. C. Perry %A C. Thomson %A D. Pope %A C. E. Bruce %A M. J. Platt %T 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 %D 2017 %J The Bone & Joint Journal %P 1102-1108 %V 99-B %N 8 %R 10.1302/0301-620X.99B8.BJJ-2016-1282.R1 %U https://doi.org/10.1302/0301-620X.99B8.BJJ-2016-1282.R1 %K Tobacco,Socioeconomic,Urinary cotinine,Perthes' disease