title: Diffraction methods for biological macromolecules. X-ray sources.
mesh_terms: D001704:Biopolymers; D046911:Macromolecular Substances; D010781:Photography; D014961:X-Ray Diffraction / Q000295:instrumentation / Q000379:methods*; D014965:X-Rays
chemical_list: D001704:Biopolymers; D046911:Macromolecular Substances