HTLV-I screening in Britain.
D001782:Blood Donors; D015490:HTLV-I Infections / Q000453:epidemiology / Q000517:prevention & control* / Q000635:transmission; D006801:Humans; D008403:Mass Screening; D015995:Prevalence; D012307:Risk Factors; D006113:United Kingdom / Q000453:epidemiology