MYELOstudy: lymph node stage of aggressiveness in medullary thyroid cancer-a retrospective multi-center study analysis. - Papavramidis T; Chorti A; Bakkar S; Raffaelli M; Košec A; Hoang VT; Lim JY; Genc V; Minuto MN; Calò PG; Hellmann A; Di Filippo G; et al. (Updates in surgery, 2026)