TY - RPRT TI - Task demand as reflected in catecholamine excretion and heart rate. AU - M Frankenhaeuser AU - G Johansson PY - 1976 DO - 10.1080/0097840x.1976.9937485 UR - https://pubmed.ncbi.nlm.nih.gov/1018111/ ID - 1018111 ER -