A. Ryan

发表

S. Cotter, A. Barret, J. Grogan, 2010, Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin.

D. Rudolph, Joel C Corbin, A. Ryan, 1993 .

F. Cloak, M. Cormican, C. Swaan, 2013, Epidemiology and Infection.

A. Muula, S. Siziya, E. Rudatsikira, 2010, International archives of medicine.