title: Selection of lymphocytes spontaneously transformed in vivo by means of density centrifugation.
mesh_terms: D002499:Centrifugation, Density Gradient; D006801:Humans; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000378:metabolism*; D013046:Specific Gravity; D013936:Thymidine / Q000378:metabolism
chemical_list: D013936:Thymidine