Comparative study of nasopharyngeal aspirate and nasal swab specimens for detection of influenza

: Heikkinen T, Salmi AA, Ruuskanen O

Publisher: BRITISH MED JOURNAL PUBL GROUP

: 2001

: BMJ

: BRITISH MEDICAL JOURNAL

: BRIT MED J

: 322

: 7279

: 138

: 138

: 1

: 0959-8138

DOI: https://doi.org/10.1136/bmj.322.7279.138