Personal Needs Allowance
pneumonia
para-nitroanilide
para-nitroaniline
parinaric acid
Paris Nomina Anatomica
partial nail avulsion
peanut agglutinin
peanut agglutinin lectin
peanut lectin
peanut lectin agglutinin
Pennsylvania Nurses Association
Pentose Nucleic Acid
peptide nucleic acids
peptidic nucleic acid
percutaneous needle aspiration
Performance Needs Assessment
phrenic nerve activity
phrenic nerve amplitude
phrenic neurogram amplitude
plasma Na
plasma noradrenaline
plasma noradrenaline concentration
plasma sodium concentration
p-nitroanilide
p-nitroaniline
p-nitroanisole
polyamide nucleic acid
polynitroxyl albumin
polynitroxylated albumin
polynuclear aromatic
polynuclear aromatic hydrocarbon
postnatal age
prednisolone 21-acetate
protein equivalent of nitrogen appearance
protein equivalent of total nitrogen appearance
protein nitrogen appearance
purine nucleoside analogues