TY - RPRT TI - Practice-based electronic billing systems and their impact on immunization registries. AU - Maureen S Kolasa AU - Janet E Cherry AU - Andrew P Chilkatowsky AU - David P Reyes AU - James P Lutz DO - 10.1097/00124784-200511000-00004 UR - https://pubmed.ncbi.nlm.nih.gov/16224283/ ID - 16224283 ER -