Also called small cell lung cancer. A commonly used abbreviation. A physician who delivers babies and is in the practice of obstetrics. Head trauma may obtund a person. The back of the head.
Occult blood is hidden from the eye but is nontheless present and can be detected by chemical tests.
Oral contraceptive pill. Alternate spelling for esophagus. An ointment has an oil base whereas a cream is water-soluble. The sense of smell. A type of brain tumor.