TY - RPRT TI - The nasion-sella reference line in cephalometry: a methodologic study. AU - H Pancherz AU - K Hansen PY - 1984 DO - 10.1016/s0002-9416(84)90036-8 UR - https://pubmed.ncbi.nlm.nih.gov/6594065/ ID - 6594065 ER -