7 lines (6 with data), 257 Bytes

e008b 0 128 0 9:35:00 04/04/1989
# Start time=09:35
# First beat=09:43:06.187
# <age-range>: 70-74, <sex>: Female, <medication>: Encainide
# <RR-low-limit(sec)>: 0.609,  <RR-high-limit(sec)>: 1.14
# Note: recording with a timing signal, flutter-compensated