https://optinmonster.com/case-study-how-chinaimportal-increased-webinar-registrations-18-using-yesno-optins/
How ChinaImportal Increased Webinar Registrations 18% Using Yes/No Optins
Jan 7, 2019 - Find out how ChinaImportal increased their email list 200%, and used Yes/No campaigns to increase webinar registrations by 18%!
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