2018-10-302025-05-232018-10-302016-12-21Shellfish ban still up in several Visayas areas. (2016, December 22). The Daily Guardian, pp. 2, 7.http://hdl.handle.net/20.500.12174/2634enShellfish ban still up in several Visayas areasnewspaperArticleshellfishHuman foodpublic healthRed tidesBiological poisons