The Cell Line Ontology (CLO) source is available at Githubs:

• Github CLO organization:  https://github.com/CLO-ontology
• Github CLO repository: https://github.com/CLO-ontology/CLO
• clo.owl file located at Github: https://raw.githubusercontent.com/CLO-ontology/CLO/master/src/ontology/clo.owl
         (note: By importing many owl files, this file is not merged)

Report CLO issues at Github: https://github.com/CLO-ontology/CLO/issues

CLO discuss group at Google Group: https://groups.google.com/forum/#!forum/clo-discuss

Notes:

• Obselete CLO sourceforge page: http://sourceforge.net/projects/clo-ontology/
• Obselete CLO Google code page: https://code.google.com/archive/p/clo-ontology/