7 lines (6 with data), 248 Bytes

e137a 0 128 0 14:10:00 12/05/1987
# Start time=14:10
# First beat=14:37:00.750
# <age-range>: 55-59, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.375,  <RR-high-limit(sec)>: 1.046
# Note: reel-to-reel recording, not flutter-compensated