EFFICACY OF INFLUENZA VACCINATION IN REDUCING OTITIS-MEDIA IN CHILDREN

: HEIKKINEN T, WARIS M, RUUSKANEN O

: 1993

: International Congress Series

: OPTIONS FOR THE CONTROL OF INFLUENZA II

: INT CONGR SER

: 1019

: 431

: 434

: 4

: 0-444-81536-8

: 0531-5131