title: The measurement of pain.
mesh_terms: D001794:Blood Pressure; D004723:Endorphins / Q000378:metabolism; D004745:Enkephalins / Q000378:metabolism; D006339:Heart Rate; D006801:Humans; D010146:Pain / Q000097:blood / Q000378:metabolism / Q000503:physiopathology; D010147:Pain Measurement; D012881:Skin Temperature
chemical_list: D004723:Endorphins; D004745:Enkephalins