(untitled) - Health Level Seven International; HL7 Version 2.5.1 implementation guide: laboratory orders from EHR (LOI)
Published 2018. Available at: https://www.hl7.org/documentcenter/public/standards/dstu/V251_IG_LABORDERS_R1_STU_R3_2018JUN.pdf. Accessed April 15, 2020