Unifying heterogeneous hyperspectral databases for in vivo human brain cancer classification: Towards robust algorithm development - Martín-Pérez A; Martinez-Vega B; Villa M; Leon R; Martinez de Ternero A; Fabelo H; Ortega S; Quevedo E; Callico GM; Juarez E; Sanz C (Computer Methods And Programs In Biomedicine Update, 2025)