Carvalho, Priscilla Ramos, Casimiro Sepúlveda Munita, and André Luiz Lapolli. 2019. “Validity Studies Among Hierarchical Methods of Cluster Analysis Using Cophenetic Correlation Coefficient”. Brazilian Journal of Radiation Sciences 7 (2A (Suppl.). https://doi.org/10.15392/bjrs.v7i2A.668.