TY - RPRT TI - Extensive idiopathic apical root resorption. A case report. AU - E M Rivera AU - R E Walton PY - 1994 DO - 10.1016/0030-4220(94)90184-8 UR - https://pubmed.ncbi.nlm.nih.gov/7838479/ ID - 7838479 ER -