In Memoriam: A Memoir for Our Fallen "Heroes". Issue 4 (15th September 2020) - Chaurasia, Bipin; Deora, Harsh; El-Ghandour, Nasser M F; Oyesiku, Nelson M; Chaurasia, Raushan Kumar; Schulder, Michael; Soriano Sanchez, Jose Antonio; Teo, Mario; Hernesniemi, Juha; Linzey, Joseph Raynor; Schwartz, Theodore H; Cohen-Gadol, Aaron A; et al.