TY - RPRT TI - Bone density in the iliac crest. AU - W J Visser AU - J M Roelofs AU - S A Duursma PY - 1981 DO - 10.1016/0221-8747(81)90007-2 UR - https://pubmed.ncbi.nlm.nih.gov/7347795/ ID - 7347795 ER -