How to link posts?

Question

WordPress

I have headings "Doctors" and "Clinics".

Accordingly, in each heading, an entry is either a doctor or a clinic.

How to connect them, in one place? (so that changes can be made in one record)

So that, for example, a doctor using ACF (there is an Attitude - records field) I can indicate that he belongs to a specific clinic and display it in the card. And in order not to do the same with the clinic, and the clinic automatically brought out a doctor who belongs to her.

Answer 1

In the doctor's card, enter the id of the clinic (you can use the text field, select, ratio) and, based on the id of the clinic, display information about it in the doctor's card:

echo get_the_title( $id );
echo get_field( 'field_name', $id );

Same with the clinic.