@article{article993bb715,
title   = {PIK3CA exon 20 mutations are associated with poor prognosis in breast cancer patients},
author = {Mangone, Flavia R and Bobrovnitchaia, Irina G and Salaorni, Sibeli and Manuli, Erika and Nagai, Maria Aparecida},
year = {2012},
doi = {10.6061/clinics/2012(11)11},
journal   = {Clinics}
}