Measuring fairness preferences is important for artificial intelligence in health care (Anatol-Fiete Näher, Ivar Krumpal, Esther -Maria Antao, Erika Ong, Marina Rojo, Fred Kaggwa, Felix Balzer, Leo Anthony Celi, Katarina Braune, Lothar H. Wieler, Louis Agha-Mir-Salim)