GBCapsNet: A calibrated capsule network for automated gallbladder disease diagnosis via ultrasound imaging - Madhu Golla; Hareesha Katiganere Siddaramappa; Puvvala Jogeeswara Venkata Naga Sai; Sai Karthik Adla; Chandrika Naga; Pradeep Nijalingappa (PLoS ONE, 2026)