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NCP Cardiovascular Medicine A Journal Covering Clinical Cardiovascular Medicine

Reiber C. L. & McGaw I. J. (2009). "A Review of the "Open" and "Closed" Circulatory Systems: New Terminology for Complex Invertebrate Circulatory Systems in Light of Current Findings". International Journal of Zoology 2009: 8 halaman. .

Patwardhan K. The history of the discovery of blood circulation: unrecognized contributions of Ayurveda masters. Adv Physiol Educ. 2012 Jun;36(2):77–82.