https://hl7.org/fhir/us/core/2021Jan/Observation-serum-sodium.html
HL7.FHIR.US.CORE\Serum Sodium Example - FHIR v4.0.1
serum sodiumhl7fhiruscore
https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2021.770362/full
Frontiers | Serum Sodium Concentration and Increased Risk for Primary Epiretinal Membrane
AbstractAims: To examine the prevalence of primary epiretinal membranes (ERMs) and associated systemic factors.Methods: The cross-sectional, community-based ...
serum sodiumincreased riskfor primaryfrontiersconcentration
https://www.wolframalpha.com/input/?i=serum%20sodium
serum sodium - Wolfram|Alpha
serum sodiumwolframalpha
https://pmc.ncbi.nlm.nih.gov/articles/PMC2577547/
Sodium ingestion and hyponatraemia: sports drinks do not prevent a fall in serum sodium...