[For persons in List A]
1. Personal information
1.3 Date of birth
1 - Personal information
Question 1.3
The date-of-birth question allows us to minimize the risk of errors in the information used to calculate ages in years.
The date of birth should be written in numbers, not letters. The day and the month should be indicated using two digits, adding a prefix of 0 as needed (for example: 05/06/1967).