Statement: soft s1 heart sound is an auscultated finding in which the sounds comprising the first heart sound are quieter than normal. (acc/aha) the primary trial and the secondary trial do not report adverse events.
Primary_evidence: Adverse Events 1:   Total: 0/23 (0.00%)
Secondary_evidence: Adverse Events 1:   Total: 0/655 (0.00%) Adverse Events 2:   Total: 0/580 (0.00%)