7 lines (6 with data), 242 Bytes

m104a 0 128 0 11:15:00 11/10/1987
# Start time=11:15
# First beat=11:15:00.015
# <age-range>: 50-54, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: NA,  <RR-high-limit(sec)>: NA
# Note: reel-to-reel recording, not flutter-compensated