DenseNet-ABiLSTM: Revolutionizing Multiclass Arrhythmia Detection and Classification Using Hybrid Deep Learning Approach Leveraging PPG Signals. - K. Saranya; U. Karthikeyan; A. Saran Kumar; Ayodeji Olalekan Salau; Ting Tin Tin (Int. J. Comput. Intell. Syst., 2025)