Prevalence of <it>KRAS</it>, <it>BRAF</it>, and <it>PIK3CA</it> somatic mutations in patients with colorectal carcinoma may vary in the same population: clues from Sardinia oleh Palomba Grazia, Colombino Maria, Contu Antonio, Massidda Bruno, Baldino Giovanni, Pazzola Antonio, Ionta MariaTeresa, Capelli Francesca, Trova Vittorio, Sedda Tito, Sanna Giovanni, Tanda Francesco, Budroni Mario, Palmieri Giuseppe, Cossu Antonio