Effectiveness of a self-help group in obesity control. A further assessment.
D000328:Adult; D001835:Body Weight; D003710:Demography; D005069:Evaluation Studies as Topic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D009765:Obesity / Q000517:prevention & control*; D009938:Organizations; D010352:Patient Dropouts; D010414:Pennsylvania; D012657:Self-Help Groups; D013223:Statistics as Topic