A survey of Phunoi-related varieties in Phongsali Province in Laos reveals that Ca Ho is a language not inherently intelligibile to Phunoi [pho] nor to any other language in E16/E17/E18/E19/E20/E21/E22/E23/E24/E25/E26/E27/E28 and is thus missing from E16/E17/E18/E19/E20/E21/E22/E23/E24/E25/E26/E27/E28 ( Kitjapol Udomkool 2006: 42 , Wright, Pamela Sue 2003 ). See also: Phunoi [pho].