المؤلفون: Law, Ronald, Eykyn, Susannah, Hutt, Michael, Ellis, C. J., Geddes, A. M., Harries, James, Ridley, D. S.

المصدر: British Medical Journal (Clinical Research Edition), 1982 Jun 01. 284(6331), 1781-1782.

URL الوصول: https://www.jstor.org/stable/29506819

المؤلفون: Ridley, D. S., Tosswill, J. H. C.

المصدر: British Medical Journal (Clinical Research Edition), 1982 Jan 01. 284(6309), 113-113.

URL الوصول: https://www.jstor.org/stable/29504857

المؤلفون: Woodruff, A. W., Ridley, D. S., Rowland, H. A. K., Harries, J. R., Hall, Anthony, Heaf, P. J. D.

المصدر: British Medical Journal (Clinical Research Edition), 1981 Mar . 282(6268), 988-989.

URL الوصول: https://www.jstor.org/stable/29501236

المؤلفون: Ridley, D. S., Ridley, Marian J.

المصدر: British Medical Journal (Clinical Research Edition), 1984 Jan . 288(6412), 236-236.

URL الوصول: https://www.jstor.org/stable/29513769