Identification of Breast Cancer Specific Markers in Patients Compared to Healthy Participants

Inclusion Criteria: * Participant is willing and able to give and sign a written informed consent for participation in the study. * Female aged 18 years or above. * Diagnosed with early breast cancer (stage I and II) or metastatic breast cancer. * Healthy participants who visit the site for reason other than cancer diagnosis (including breast cancer). Exclusion Criteria: * History of other malignancies other than breast cancer (for healthy participants includes also breast cancer). * Undergone surgery or treatment for breast cancer before enrollment (only for early breast cancer). * Presence of known severe coagulation or haematological disorder * Known Pregnancy * Absence of written signed informed consent for participation in the study