Use of lead shields for radiation protection of superficial organs in patients undergoing head CT examinations
REA, Russell (1846 - 1916), PC 1909; a Junior Lord of the Treasury since 1915; MP (L) South Shields since 1910; shipowner and merchant; Founder and Head of firm R. & J. H. Rea
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1 The term sometimes applied to the cephalon in trilobites (Trilobita).
2 The dorsal head covering of solid bone which occurs in many ostracoderms (Ostracodermi) (agnathan fish, see agnatha).
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