KIRKWOOD, R. N.; BRANDON, S. C.; MOREIRA, B. de S.; DELUZIO, K. J. Searching for Stability as we Age: The PCA-Biplot Approach. International Journal of Statistics in Medical Research, [S. l.], v. 2, n. 4, p. 255–262, 2013. DOI: 10.6000/1929-6029.2013.02.04.2. Disponível em: https://mail.lifescienceglobal.com/pms/index.php/ijsmr/article/view/1415. Acesso em: 22 nov. 2024.