Thalassinos, NC Tsagarakis, S Ioannides, G Tzavara, I and Papavasiliou, C, Megavoltage pituitary irradiation lowers but seldom leads to safe GH levels in acromegaly: a long-term follow-up study, European Journal of Endocrinology, (138), 160-163, 1998, Universitetsforlaget (Scandinavian University Press), 0804-4643, 1479-683X