Response times of donors sent letters requesting them to contact the Welsh blood service.
Paley
O Jane
OJ
Ahya
R
R
Hambley
H
H
D000094902:Blood Banking / Q000379:methods*; D001782:Blood Donors / Q000523:psychology*; D003299:Cooperative Behavior; D015709:Correspondence as Topic; D030881:Disclosure; D006509:Hepatitis B / Q000175:diagnosis / Q000635:transmission; D006526:Hepatitis C / Q000175:diagnosis / Q000635:transmission; D006801:Humans; D013587:Syphilis / Q000175:diagnosis / Q000635:transmission; D013997:Time Factors