7 lines (6 with data), 251 Bytes

m059a 0 128 0 9:02:00 06/04/1991
# Start time=09:02
# First beat=09:10:41.406
# <age-range>: 55-59, <sex>: Female, <medication>: None
# <RR-low-limit(sec)>: 0.5,  <RR-high-limit(sec)>: 0.976
# Note: recording with a timing signal, flutter-compensated