7 lines (6 with data), 249 Bytes

e213a 0 128 0 15:30:00 31/07/1988
# Start time=15:30
# First beat=15:51:58.265
# <age-range>: 65-69, <sex>: Female, <medication>: None
# <RR-low-limit(sec)>: 0.539,  <RR-high-limit(sec)>: 0.96
# Note: reel-to-reel recording, not flutter-compensated