31. Currently, EPO, or erythropoietin , is found in Europe under different labels. 32. Synthetic EPO, or erythropoietin , can not be detected in standard drug tests. 33. EPO, or erythropoietin , boosts production of oxygen-carrying red blood cells. 34. Hellebuyck is contesting the finding regarding erythropoietin ( EPO ), the USOC said. 35. Defects in the erythropoietin receptor may produce erythrocytosis. 36. Erythropoietin , a genetically engineered drug, stimulates the body to produce more red cells.37. The erythropoietin project is just one of many that Wilson and his colleagues are pursuing. 38. Erythropoietin is a protein normally produced in kidneys that stimulates production of red blood cells.39. Turns out that the ballyhooed new urine test for banned erythropoietin is all but obsolete. 40. EPO : Erythropoietin , a synthetic hormone that stimulates the production of red blood cells.