American Academy of Family Physicians Seasonal Affective Disorder American Academy of Family Physicians The American Academy of Family Physicians American Academy of Family Physicians(米国家庭医アカデミー 2016年9月12日) American Academy of Family Physicians (AAFP) 10 to 20 percent 4 to 6 percent Family Doctor American Academy of Family Physicians (AAFP) American Academy of Family Physicians estimates put the number American Academy of Family Physicians Seasonal Affective Disorder American Academy of Family Physicians American Academy of Family Physicians seasonal affective disorder Seasonal Affective Disorder 10-20% of Americans SAD