Circulating tumor cells in metastatic breast cancer: the need for a standardized approach.
De Mattos-Arruda
L
L
Department of Medical Oncology, Vall D'Hebron University Hospital, Barcelona, Spain. Electronic address: ldmattos@ir.vhebron.net.
Elattar
I
I
Department of Biostatistics and Epidemiology, National Cancer Institute, Cairo University, Cairo, Egypt.
Azim
H A
HA
Department of Medical Oncology, Jules Bordet Institute, Brussels, Belgium.