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GitHub User: dermaconsult

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Hi, very nice tutorial, I need to develop a very long form that will have many questions that will be optional based on the user inputs from a previous question for example:

Do you fever? Yes/No

(Questions appear in case user selected Yes)
Date it Started?


(Next question appears if user selected No)
Do you have allergies?

I will divide the form on several views but I would like some of the questions on the form only appearing if the users select the appropriate answer form the previous question.
Any ideas on how to implement this, thanks.