For information on installing to the DynaMed app to your device see the How do I install and authenticate the DynaMed app on my mobile device webpage on the DynaMed site.   You will need to create a personal account with DynaMed in order to log-in to the DynaMed app.  To create a personal account with you must access DynaMed from links on the library's website.  Scroll to the section on "How do I download and authenticate the app on my device" on the DynaMed web page for more information.