CO

• carbon monoxide;

• cardiac output;

• castor oil;

• casualty officer;

• centric occlusion;

• cervical orthosis;

• cervicoaxial;

• childhood onset;

• choline oxidase;

• coccygeal;

• coenzyme;

• compound;

• control;

• corneal opacity;

• cross over;

• cyclophosphamide and vincristine