Detection of HER2 and CK‐19 mRNA-positive circulating tumor cells (CTCs) in the peripheral blood of patients with early stage breast cancer. - Mavroudis,D.; Apostolaki,S.; Perraki,M.; Politaki,E.; Xenidis,N.; Stathopoulou,A.; Lianidou,E.; Georgoulias,V. (Proc Amer Assoc Cancer Res, 2006)