Heart Rate Variability Biofeedback to Manage the Mental Health of Adults With Irritable Bowel Syndrome: A Pilot Study. - Minjoz, Séphora; Jeanne, Rudy; Vercueil, Laurent; Sabourdy, Cécile; Sinniger, Valérie; Bonaz, Bruno; Hot, Pascal; Pellissier, Sonia (Stress & Health: Journal of the International Society for the Investigation of Stress, 2025)