TY - RPRT TI - A comparison between amplitude sorting and phase-angle sorting using external respiratory measurement for 4D CT. AU - Wei Lu AU - Parag J Parikh AU - James P Hubenschmidt AU - Jeffrey D Bradley AU - Daniel A Low PY - 2006 DO - 10.1118/1.2219772 UR - https://pubmed.ncbi.nlm.nih.gov/16964875/ ID - 16964875 ER -