Are liquid levothyroxine formulations comparable? The LETI study. - Gatta, Elisa; Maltese, Virginia; Pirola, Ilenia; Gandossi, Elena; Silvestrini, Irene; Ugoccioni, Massimiliano; Morandi, Riccardo; Casella, Claudio; Cappelli, Carlo (Thyroid Research, 2025)