PREMATURE SYSTOLES ORIGINATING IN THE SINO-AURICULAR NODE.
Langendorf
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R
Cardiovascular Department, Michael Reese Hospital, Chicago, Illinois, U.S.A.
Mintz
S S
SS
D001145:Arrhythmias, Cardiac; D005117:Cardiac Complexes, Premature; D006801:Humans; D013599:Systole