TY  - BOOK
AU  - (Wenger,Nanette Kass)
AU  - (Mock,Michael B.)
AU  - (Ringqvist,Ivar)
TI  - Ambulatory electrocardiographic recording / 
SN  - 0815192207 (hb)
PY  - 1980///
CY  - Chicago : 
PB  - Year Book Medical Publishers, 
N1  - Includes index
ER  -