<s>[INST] Will patients still need Erythropoietin (EPO) injections? [/INST] Yes. The type of kidney cell in the bioreactor is different than the cells that secrete erythropoietin, so patients will still need supplemental EPO. Source: UC San Francisco. Link: https://pharm.ucsf.edu/kidney/device/faq. Field: Nephrology. Disease: Kidney Disease </s>