title: Composition of asteroid bodies.
mesh_terms: D000368:Aged; D002118:Calcium / Q000032:analysis; D003094:Collagen; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D010758:Phosphorus / Q000032:analysis; D013057:Spectrum Analysis; D013455:Sulfur / Q000032:analysis; D014822:Vitreous Body / Q000032:analysis*
chemical_list: D010758:Phosphorus; D013455:Sulfur; D003094:Collagen; D002118:Calcium