Factors affecting the finding of cancer cells in the blood.
D001943:Breast Neoplasms / Q000097:blood; D001984:Bronchial Neoplasms / Q000097:blood; D006801:Humans; D009362:Neoplasm Metastasis; D009360:Neoplastic Cells, Circulating; D013997:Time Factors; D001749:Urinary Bladder Neoplasms / Q000097:blood