You are using Internet Explorer. Content will likely not be displayed correctly. Please switch to a different Browser to use this site.
F2F 2: family protocol (CAPI)[instrument]
This questionnaire module contains questions on: characteristics of family members (name, age, gender of twins; name, age, gender and relation to twins of siblings and parents who don't live in household; partners of twins).
Label: F2F 2: family protocol (CAPI)