Letter from Diana Walford to Mr Parker regarding AIDS House of Lords PQ 14 July. Suggests possible wording for the reply by Lord Gelnarthur to Baroness Masham about the possibility of transmission of AIDS from anti-haemophilic Cryoprecipitate. States there is no conclusive proof that AIDS can be transmitted by blood cryoprecipitate or Factor VIII concentrates but the assumption is that such transmission may be possible.