https://www.sciencedirect.com/science/article/pii/S1053811900915143 (Publisher version)
Posse, S., Zito, G., Patria, F., Hagberg, G., & Sanes, J. (2000). Sensitivity enhancement of BOLD contrast functional MRI by real-time multi-echo EPI. NeuroImage, 11(5 Supplement), S583.