7 lines (6 with data), 254 Bytes

m207b 0 128 0 11:17:00 24/06/1990
# Start time=11:17
# First beat=11:18:56.226
# <age-range>: 70-74, <sex>: Male, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.585,  <RR-high-limit(sec)>: 1.226
# Note: reel-to-reel recording, not flutter-compensated