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Results 1 - 1 of 1 for PHENYLALANINE OR ISOLEUCINE OR THREONINE OR GLYCINE OR LYSINE OR VALINE OR TYROSINE OR SERINE OR ARGININE OR GLUTAMIC ACID OR LEUCINE OR ALANINE OR METHIONINE OR TRYPTOPHAN OR PROLINE OR ASPARTIC ACID OR HISTIDINE
  1. ... The test is performed by administering the amino acid arginine in a vein to raise hGH levels. The ...