Ostreopsis ovata and human health: epidemiological and clinical features of respiratory syndrome outbreaks from a two-year syndromic surveillance, 2005-06, in north-west Italy Durando, P and Ansaldi, F and Oreste, P and Moscatelli, P and Marensi, L and Grillo, C and Gasparini, R and Icardi, G and Collaborative Group for the Ligurian Syndromic Algal Surveillance, Weekly releases (1997–2007), 12, 3212 (2007), https://doi.org/10.2807/esw.12.23.03212-en