Dear developers,
In case I want to start building healthcare marketplace app (pharmacies, medical equipments and labs) where every users can search for specific medicine, some Medical equipment and lab test can get a list of pharmacies, labs who provide those products/service. Having said that what could be the best sign in option for (pharmacists, labs, physicians, people/users) on phone number or E-mail or any sign in option that will fit who want to join healthcare app? I want your though guys here as I am trying to have a universal healthcare app that can connect all healthcare people/product/service with people.
Thanks in advance for any advice
