| Inclusion Criteria: | Pts with alopecia areata,children or adults with alopecia universalis, alopecia totalis, patchy persistent AA or transient mild AA.
Family members (related by blood) of these pts, preferable sib-pairs plus parents & multiplex families.
Age and/or sex matched controls from spouses, significant others or friends.
Age and/or sex-matched controls (unlrelated by blood and unaffected with AA) from spouses, significant others or friends, or adopted family members.
Residence in the U.S.A. |