7 lines (6 with data), 248 Bytes

e020a 0 128 0 9:55:00 25/02/1988
# Start time=09:55
# First beat=10:03:25.804
# <age-range>: 55-59, <sex>: Female, <medication>: None
# <RR-low-limit(sec)>: 0.578,  <RR-high-limit(sec)>: 1.14
# Note: reel-to-reel recording, not flutter-compensated