Global Halitosis Treatment Market By Type (By Type , Pathologic Halitosis , Others , By Indication , Respiratory , Liver , Kidney , Gastrointestinal , Systemic , Others , By Drug Treatment , and Antacids ), By Application (Hospitals , and Clinics), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029