2102Ep embryonal carcinoma cells have compromised respiration and shifted bioenergetic profile distinct from H9 human embryonic stem cells by Ounpuu, L, Klepinin, A, Pook, M, Teino, I, Peet, N, Paju, K, Tepp, K, Chekulayev, V, Shevchuk, I, Koks, S, Maimets, T, Kaambre, T