7 lines (6 with data), 255 Bytes

e203b 0 128 0 10:00:00 17/09/1987
# Start time=10:00
# First beat=10:13:16.789
# <age-range>: 60-64, <sex>: Female, <medication>: Encainide
# <RR-low-limit(sec)>: 0.703,  <RR-high-limit(sec)>: 1.273
# Note: reel-to-reel recording, not flutter-compensated