CTO: A Community-Based Clinical Trial Ontology and Its Applications in PubChemRDF and SCAIView. - Asiyah Yu Lin; Stephan Gebel; Qingliang Leon Li; Sumit Madan; Johannes Darms; Evan Bolton; Barry Smith 001; Martin Hofmann-Apitius; Yongqun Oliver He; Alpha Tom Kodamullil (ICBO/ODLS, 2020)