 - Literature-backed early cancer detection blood-based markers once every two months 17-OH-pregnenolone, testosterone, progesterone, 11 deoxycortisol, deoxycorticosterone DOC, beta-2-microglobulin, carcinoembryonic antigen CEA, Cancer Antigen 125 CA-125, β-human chorionic gonadotropinβ-HCG, alpha-fetoprotein, 17-OH-progesterone, androstenedione, dehydroepiandrosterone DHEA, lactate dehydrogenase. 