TY - RPRT TI - Ankylosed deciduous molars. AU - J M VORHIES AU - G T GREGORY AU - R E McDONALD PY - 1952 DO - 10.14219/jada.archive.1952.0042 UR - https://pubmed.ncbi.nlm.nih.gov/14888417/ ID - 14888417 ER -