Ellis, A E Phylogeny of the lymphoid system. I. A study of the fate of circulating lymphocytes in plaice. [electronic resource] - European journal of immunology May 1974 - 338-43 p. digital Publication Type: Journal Article ISSN: 0014-2980 Standard No.: 10.1002/eji.1830040505 doi Subjects--Topical Terms: AnimalsAutoradiographyBiological EvolutionCell MovementFishes--immunologyGills--cytologyIntestines--cytologyKidney--anatomy & histologyLiver--cytologyLymph--cytologyLymphatic System--anatomy & histologyLymphocytesLymphoid TissueRNA--biosynthesisSpecimen HandlingSpleen--anatomy & histologyThymus Gland--cytologyTritiumUridine--metabolismUrine--cytology