Matthys, J; De Meyere, M; van Driel, ML; De Sutter, A. Differences among international pharyngitis guidelines: not just academic. (англ.) // Annals of Family Medicine : journal. — Vol. 5, no. 5. — P. 436—443. — doi:10.1370/afm.741. — PMID17893386. — PMC2000301.
Matthys, J; De Meyere, M; van Driel, ML; De Sutter, A. Differences among international pharyngitis guidelines: not just academic. (англ.) // Annals of Family Medicine : journal. — Vol. 5, no. 5. — P. 436—443. — doi:10.1370/afm.741. — PMID17893386. — PMC2000301.