Estimation of substance P.
D001921:Brain; D001923:Brain Chemistry; D006801:Humans; D007422:Intestines / Q000737:chemistry*; D010455:Peptides / Q000737:chemistry*; D012044:Regression Analysis; D013373:Substance P
D010455:Peptides; D013373:Substance P
BRAIN/chemistry; INTESTINES/chemistry; PEPTIDES/chemistry