title: RNA ssynthesis by Down's syndrome Leucocytes.
mesh_terms: D000225:Adenine / Q000032:analysis; D002499:Centrifugation, Density Gradient; D002648:Child; D003596:Cytosine / Q000032:analysis; D004314:Down Syndrome / Q000378:metabolism*; D005260:Female; D006147:Guanine / Q000032:analysis; D006801:Humans; D007962:Leukocytes / Q000378:metabolism*; D008297:Male; D012313:RNA / Q000096:biosynthesis* / Q000097:blood; D013997:Time Factors; D014316:Tritium; D014498:Uracil / Q000032:analysis; D014529:Uridine / Q000378:metabolism
chemical_list: D014316:Tritium; D014498:Uracil; D006147:Guanine; D012313:RNA; D003596:Cytosine; D000225:Adenine; D014529:Uridine