@misc{indiciae165f7294306f, title = {Orthotic variants.}, author = {E Sobel and S J Levitz and L S Jones}, year = {1997}, doi = {10.7547/87507315-87-1-23}, url = {https://pubmed.ncbi.nlm.nih.gov/9009545/}, note = {Source identifier: 9009545} }