Nadir

National Cancer Institute (NCI)

National Center for Complementary and Integrative Health (NCCIH)

National Institute of Allergy and Infectious Diseases (NIAID)

National Institutes of Health (NIH)

National Library of Medicine (NLM)

National Prevention Information Network

Natural History Study

Natural Killer (NK) Cell

Nemaline Rod Myopathy (NM)

Neonatal

Neoplasm

Nephritis

Nephrolithiasis

Nephrotoxic

Neuralgia

NeuroAIDS

Neuropathy

Neutropenia

Neutrophil

New Drug Application (NDA)

NNRTI-Sparing Regimen

Non-Hodgkin Lymphoma (NHL)

Non-Inferiority Trial

Non-Nucleoside Analogue Reverse Transcriptase Inhibitor

Non-Nucleoside Reverse Transcriptase Inhibitor (NNRTI)

Non-Occupational Post-Exposure Prophylaxis (nPEP)

Non-Steroidal Anti-Inflammatory Drug (NSAID)

NRTI-Sparing Regimen

Nuclear Magnetic Resonance (NMR)

Nucleic Acid

Nucleic Acid Amplification Test

Nucleic Acid Test (NAT)

Nucleoside

Nucleoside Analogue Reverse Transcriptase Inhibitor

Nucleoside Reverse Transcriptase Inhibitor (NRTI)

Nucleotide

Nucleotide Analogue Reverse Transcriptase Inhibitor

Nucleotide Reverse Transcriptase Inhibitor (NtRTI)

Nucleus