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subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0732-8893(12)00383-5
Laboratory Tests free resource MedlinePlus Health Information https://medlineplus.gov/laboratorytests.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23083638/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/23083638
free resource scite Smart Citations https://scite.ai/reports/23083638