7 lines (6 with data), 253 Bytes

f005b 0 128 0 10:30:00 27/06/1988
# Start time=10:30
# First beat=10:49:53.453
# <age-range>: 65-69, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.75,  <RR-high-limit(sec)>: 1.726
# Note: reel-to-reel recording, not flutter-compensated