CORRESPONDENCE.

Autor: Cobman, Dermont, Morley, David, Brown, Richard, Doyle, Edward, Britto, Joseph, Best, Crispin, de Courcy-Wheeler, Richard, Wolfe, Charles, Smith, George Davey, Hen-Schlomo, Yoav, Kendall, Martin J., Hand, C.H., Johnston, G.D., Neilson, D., Rao, P.N., Sharma, Rekha, Bromham, David R., Sharma, Vinay

Publikováno v: BMJ: British Medical Journal (International Edition); 3/7/92, Vol. 304 Issue 6827, p637, 8p, 1 Diagram, 2 Charts, 1 Graph