Inter-rater variability for the American Society of Anesthesiologists classification in patients undergoing hepato-pancreato-biliary surgery (MILESTONE-2): international survey among surgeons and anaesthesiologists.

Augustinus S, Sijberden JP, Bieze M, Agarwal V, Aldrighetti LA, Alseidi A, Bonofiglio FC, Conlon KCP, Donadello K, Erdmann J, Ferrone C, Guertin M, Harter R, Franceschetti ME, Fusai GK, Groot Koerkamp B, Hackert T, Jang JY, Kander T, Keck T, Krzanicki D, Lee HJ, Lewis K, Natalini G, Nau C, Pawlik TM, Pitt HA, Reineke R, Salvia R, de Santibanes E, Shrikhande SV, Smith M, Szijarto A, Tingstedt B, Wei AC, Windsor J, Abu Hilal M, Pardo M, Hollmann MW, Besselink MG