1.) What is HIS (Health Information System)?

> Health Information System is a system designed to manage healthcare data. In short, it operates as an electronic medical record (EMR) for patients. The Philippines calls it The Community Health Information Tracking System (CHITS), to not only lessen the patient’s waiting time, but also make patient information easily accessible for medical professionals.
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2.) What is a progressive web app?

> A progressive web app (PWA) are apps built with common web technologies, and are also built with modern APIs which makes it easy to deliver improved capabilities. Not only are they reliable, but they can also be used offline, and on any device.
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Sources:
https://www.freecodecamp.org/news/what-are-progressive-web-apps/
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https://www.ncbi.nlm.nih.gov/books/NBK602592/