Subject contacted for follow-up?
Item
Subject contacted for follow-up?
boolean
C1522577 (UMLS CUI [1,1])
C1705415 (UMLS CUI [1,2])
If YES, record date of contact
Item
If YES, record date of contact
date
C1522577 (UMLS CUI [1,1])
C1705415 (UMLS CUI [1,2])
C0011008 (UMLS CUI [1,3])