Figure 2
From: Cardiotoxicity of Freon among refrigeration services workers: comparative cross-sectional study
(a) Narrative summary of Holter monitoring for Freon-exposed worker during an exposed day showed frequent atrio-ventricular multifocal arrhythmias. (b) Narrative summary of Holter monitoring for the same Freon-exposed worker during a control day showed a lower frequency of abnormal beats.