TY - RPRT TI - A modified ECG system for medium-sized hospitals. AU - M Dunn AU - D M Pugh AU - C M Stiles PY - 1969 DO - 10.1016/s0022-0736(69)80012-9 UR - https://pubmed.ncbi.nlm.nih.gov/5382238/ ID - 5382238 ER -