¿How can I slice ref rows in an entry form for each user?

[Rene_Casana_Ama]

I have three table slices: [doctors], [patients] and [appointments], all the table slices are sliced with the condition UserEmail=USEREMAIL(), doctors are the final users, so that each doctor see he´s patients only, he´s appointments only and he´s colleagues only. Everything works fine in each view.

My problem is that when (Doctor A) makes a new appointment in the new appointment form, the [Patient] dropdown menu displays all the patients unfiltered