ERIKSON , UNO, and URBAN JAMES. 1973. “Roentgenological Study of Certain Stump—Socket Relationships in Above-Knee Amputees With Special Regard to Tissue Proportions, Socket Fit and Attachment Stability”. Upsala Journal of Medical Sciences 78 (3):203-14. https://doi.org/10.3109/03009737309178629.