7 lines (6 with data), 260 Bytes

m020b 0 128 0 10:54:00 07/03/1990
# Start time=10:54
# First beat=11:02:20.406
# <age-range>: 40-44, <sex>: Female, <medication>: Moricizine
# <RR-low-limit(sec)>: 0.476,  <RR-high-limit(sec)>: 1.039
# Note: recording with a timing signal, flutter-compensated