X ** PAIR PVCs<X ** PAIR PVCsS~X ** PAIR PVCsNpX ** PAIR PVCs6X ** PAIR PVCskX ** PAIR PVCs[X** MULTIFORM PVCsMX ** PAIR PVCs0uX ** PAIR PVCs;X ** PAIR PVCsX ** PAIR PVCsX ** PAIR PVCsAX** MULTIFORM PVCsxhX ** PAIR PVCsMX** IRREGULAR HRnX ** PAIR PVCs~>X** IRREGULAR HR&GX** IRREGULAR HRdX** IRREGULAR HRkX ** PAIR PVCs6DX ** PAIR PVCsOX ** PAIR PVCs