TY - RPRT TI - Circulating catecholamines and sympathetic activity after head injury. AU - G L Clifton AU - M G Ziegler AU - R G Grossman PY - 1981 DO - 10.1227/00006123-198101000-00003 UR - https://pubmed.ncbi.nlm.nih.gov/7207763/ ID - 7207763 ER -