TY - RPRT TI - Biophysical studies on bone tissue. XII. Experimentally produced ectopic bone tissue. AU - B ENGFELDT AU - A ENGSTROM PY - 1954 DO - 10.3109/17453675408988554 UR - https://pubmed.ncbi.nlm.nih.gov/13217796/ ID - 13217796 ER -