TY - RPRT TI - The head midline as a reliable reference frame for encoding head-on-body orientation. AU - G Spidalieri AU - R Sgolastra PY - 1999 DO - 10.1097/00001756-199908200-00007 UR - https://pubmed.ncbi.nlm.nih.gov/10574354/ ID - 10574354 ER -