Heart Rate Variability Biofeedback Training Reduces Early Maternal Stress, Anxiety, and Depression in Women Undergoing Cesarean Delivery: A Randomized Controlled Trial. - Chen, Shu-Fang; Pan, Wan-Lin; Gau, Meei-Ling; Hsu, Tzu-Chuan; Shen, Shu-Chiao (Applied Psychophysiology & Biofeedback, 2024)