Gray, R., & Wheatley, K. (1991). How to avoid bias when comparing bone marrow transplantation with chemotherapy.
Chicago-čujuhus (17. p.)Gray, R., juo K. Wheatley. How to Avoid Bias When Comparing Bone Marrow Transplantation with Chemotherapy. 1991.
MLA-čujuhus (9. p.)Gray, R., juo K. Wheatley. How to Avoid Bias When Comparing Bone Marrow Transplantation with Chemotherapy. 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.