%0 Journal Article %T Correction: Association of circulating levels of total and protein-bound sphingosine 1-phosphate with osteoporotic fracture %D 2021 %R 10.1136/jim-2020-001322corr1 %J Journal of Investigative Medicine %P 1261-1261 %V 69 %N 6 %U http://hw-f5-jim.highwire.org/content/jim/69/6/1261.full.pdf