DNA multiallelic systems reveal gene/longevity associations not detected by diallelic systems. The APOB locus - G. De Benedictis; E. Falcone; G. Rose; R. Ruffolo; P. Spadafora; G. Baggio; S. Bertolini; D. Mari; R. Mattace; D. Monti; M. Morellini; P. Sansoni; et al. (Human Genetics, 1997)