Wang, Jie Jin, Rochtchina, Elena, Liew, Gerald, Tan, Ava G., Wong, Tien Yin, Leeder, Stephen R., Smith, Wayne, Shankar, Anoop, Mitchell, Paul (2008). "The Long-term Relation among Retinal Arteriolar Narrowing, Blood Pressure, and Incident Severe Hypertension". American Journal of Epidemiology, Vol.168, No.1, July 1, 2008: p.80-88

Warning: These citations may not always be 100% accurate.