title: HPD - a study of its components and their properties.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D017324:Hematoporphyrin Derivative; D006415:Hematoporphyrins / Q000302:isolation & purification; D013329:Structure-Activity Relationship
chemical_list: D006415:Hematoporphyrins; D017324:Hematoporphyrin Derivative