| http://www.w3.org/ns/prov#value | - , 14, 23F and 6A. It is well known the serotypes that cause AOM worldwide vary according to a number of factors, such as age, health and geographical location.18-22 A review of the most prevalent serotypes involved in AOM in various geographical areas, including the United States ofAmerica, indicate that the most frequent ones are 6 A, 6 B, 14, 19 A, 19 F
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