http://www.ncbi.nlm.nih.gov/pubmed/7965369 http://www.ncbi.nlm.nih.gov/pubmed/7965369 http://www.ncbi.nlm.nih.gov/pubmed/7965369 http://www.ncbi.nlm.nih.gov/pubmed/7965369 nih.gov The major electrolytes: sodium, potassium, and chloride http://www.ncbi.nlm.nih.gov/pubmed/7965369