“…EGFR overexpression has been associated with oestrogen receptor (ER) and progesterone receptor (PR) negativity (Pawlowski et al, 2000;Ferrero et al, 2001;Tsutsui et al, 2002;Bieche et al, 2003). Moreover, there may be an association between EGFR positivity and high histological grade or lymph node involvement, although not all existing studies are in agreement (Pawlowski et al, 2000;Ferrero et al, 2001;Witton et al, 2003;Rampaul et al, 2004;Tzaida et al, 2007). Currently, the prognostic significance of EGFR in breast cancer patients remains unclear.…”