Autor:	Crump, B. J., Kettle, A. G., Field, S., Buxton-Thomas, M. S., Rake, M. O., Coakley, A. J., Donovan, I. A., Burkitt, D. S., Harding, L. K., Wheeler, Janet G., Harvey, Richard F., Slack, Nicola F., Miller, V., Khan, A., Dawson, D., Shreeve, D. R.
Zdroj:	British Medical Journal (Clinical Research Edition), 1987 Oct . 295(6606), 1134-1135.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/29528713 Zobrazit plný text záznamu