TY - GEN AU - Friedlander,Arthur H TI - Doubling Up SN - 1943-4723 PY - 2019///1216 KW - Biomarkers KW - Diphosphonates KW - Humans KW - Osteonecrosis N1 - Publication Type: Letter; Comment UR - https://doi.org/10.1016/j.adaj.2019.09.007 ER -