title: Photochemical formation and degradation of cephalosporins.
mesh_terms: D002511:Cephalosporins / Q000528:radiation effects*; D004355:Drug Stability; D007536:Isomerism; D010777:Photochemistry; D013844:Thiazoles; D014466:Ultraviolet Rays
chemical_list: D002511:Cephalosporins; D013844:Thiazoles