The DEMO version only includes 10 pages:
http://ram-hosp.co.th
http://ram-hosp.co.th/change_lag/en.html
http://ram-hosp.co.th/change_lag/th.html
http://ram-hosp.co.th/html/specialtyclinic_hearts.html
http://ram-hosp.co.th/searchdoctor1.html
http://ram-hosp.co.th/doctorsetdate_step1.html
http://ram-hosp.co.th/centeronly.html
http://ram-hosp.co.th/department.html
http://ram-hosp.co.th/packagist/1.html
http://ram-hosp.co.th/packagist/2.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www6.waybackmachinedownloader.com/website-downloader-online/scrape-all-files/ to buy a fully functioning site.
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