title: OPEN-BLADE FORCEPS MODIFICATION.
mesh_terms: D006801:Humans; D009772:Obstetrical Forceps; D009942:Organometallic Compounds; D011725:Pyridines
chemical_list: D009942:Organometallic Compounds; D011725:Pyridines; C010423:pyrithione zinc
keywords: OBSTETRICAL FORCEPS