National Academy of Clinical Biochemistry laboratory medicine practice guidelines for use of tumor markers in testicular, prostate, colorectal, breast, and ovarian cancers. by Sturgeon, C, Duffy, M, Stenman, U, Lilja, H, Brünner, N, Chan, D, Babaian, R, Bast, R, Dowell, B, Esteva, F, Haglund, C, Harbeck, N, Hayes, D, Holten-Andersen, M, Klee, G, Lamerz, R, Looijenga, L, Molina, R, Nielsen, H, Rittenhouse, H, Semjonow, A, Shih, I, Sibley, P, Sölétormos, G, Stephan, C