Observations on vegetarian dietary practice and social factors: the need for further research.
D000328:Adult; D000367:Age Factors; D001294:Attitude to Health; D003466:Cultural Characteristics; D014676:Diet, Vegetarian / Q000523:psychology; D005247:Feeding Behavior; D006801:Humans; D052756:Nutritional Sciences / Q000193:education; D012067:Religion; D012106:Research; D012959:Socioeconomic Factors; D006113:United Kingdom; D014481:United States