Picture story. Mopping up histamine.
Feng
H P
HP
D000818:Animals; D018360:Crystallography, X-Ray; D006632:Histamine / Q000737:chemistry* / Q000502:physiology*; D006633:Histamine Antagonists / Q000737:chemistry; D017433:Protein Structure, Secondary; D013987:Ticks / Q000737:chemistry
D006633:Histamine Antagonists; D006632:Histamine