TY - GEN AU - Calabresi,M TI - Why not extrasystoles? SN - 0002-9149 PY - 1986///0502 KW - Cardiac Complexes, Premature KW - physiopathology KW - Humans KW - Terminology as Topic N1 - Publication Type: Letter UR - https://doi.org/10.1016/0002-9149(86)90643-0 ER -