“…Brindle (1978) instigated a system of rationing radiological studies to different users. Clinical guidelines to reduce the number of requests have also been provided (Bull and Zilkha, 1968;Reidy et al, 1975;Rees et al, 1976;de Lacey, 1976;de Lacey et al, 1977;Boulis et al, 1978;de Lacey and Bradbrooke, 1979b). Finally, some authors have suggested that radiologists need not report all 306 examinations (Aberdour, 1976;Gompels, 1976;Bull, 1976;Emrys-Roberts, 1975).…”