الوصول الحر: http://dx.doi.org/10.1093/cid/cit527Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e52df4372f881de1cc8836704f8323c6Testhttps://wwwnc.cdc.gov/eid/article/20/3/13-1353_articleTest