Epidemiology – time trends We found PPE frequencies from 30 cases (2004–2008) to a maximum of 43 cases (2012–2016) per 4 years, with an overall trend of increasing frequencies.
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Epidemiology – time trends We found PPE frequencies from 30 cases (2004–2008) to a maximum of 43 cases (2012–2016) per 4 years, with an overall trend of increasing frequencies.