Evaluation of Osseous Morphology of the Hip Using Zero Echo Time Magnetic Resonance Imaging - Ryan E. Breighner, Eric A. Bogner, Susan C. Lee, Matthew F. Koff, Hollis G. Potter, 2019
Zer0 | Borderlands Wiki | Fandom
Lost ECHOs - Borderlands 2 Wiki Guide - IGN
Echo Combat + Lone Echo II Developer Log | July 15, 2022 | by Echo Games | Echo Games: Official Mission Logs | Medium