Nurse Abbreviations and Acronyms
- OASNOhio Association of Gchool Nurses
- OBNOhio Board of Nursing
- OCNOregon Center for Nursing
- ODEPCOverseas Development and Employment Promotion Consultants
- ODEPCOverseas Development and Employment Promotion Consultant
- OEHNOccupational and Environmental Health Nursing
- OHAOccupational Health Advisor
- OHNOccupational Health Nursing
- OHNOccupational Health Nurses
- OHNAPOccupational Health Nurses Association of The Philippines
- OHNSOccupational Health Nurses
- OIIQOrdre Des InfirmièRes Et Infirmiers Du QuéBec
- OJINOnline Journal of Issues In Nursing
- OMROptical Markup Reader
- ONAOhio Nurses Association
- ONAOklahomainurses Association
- ONAOntario Nurses Association
- ONCOrthopaedic Nurse, Certified
- ONCOrthopaedic Nurses Certification
- ONCBOrthopaedic Nurses Certification Board
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