Billman, G. E. (2013). The LF/HF ratio does not accurately measure cardiac sympatho-vagal balance. Frontiers Media S.A.
Čikaški stil citiranjaBillman, George E. The LF/HF Ratio Does Not Accurately Measure Cardiac Sympatho-vagal Balance. Frontiers Media S.A, 2013.
MLA način citiranjaBillman, George E. The LF/HF Ratio Does Not Accurately Measure Cardiac Sympatho-vagal Balance. Frontiers Media S.A, 2013.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.