PERCEPTRON: an open-source GPU-accelerated proteoform identification pipeline for top-down proteomics. - Muhammad Farhan Khalid; Kanzal Iman; Amna Ghafoor; Mujtaba Saboor; Ahsan Ali; Urwa Muaz; Abdul Rehman Basharat; Taha Tahir; Muhammad Abubakar; Momina Amer Akhter; Syed Waqar Nabi; Wim Vanderbauwhede; et al. (Nucleic Acids Res., 2021)