Minutes of Advisory Committee on the Virological Safety of Blood 6th meeting 24 April 1990. Chairman Dr J. Metters. Members Dr Garrett Dr H.H. Gunson Dr R. Lane Dr P. Mitchell Dr P. Mortimer Dr R.J. Perry Dr R. Tedder Dr E.G. Tuddenham Prof A. Zuckerman. Secretariat Dr A. Rejman J. Canavan. Observers Dr A. Flett M. Fuller Dr A. McIntyre Dr H. Pickles Dr F. Rotblat J. Sloggem.