Age-discrepant marriages: cross-national comparisons of Canadian-American trends.
D000367:Age Factors; D002170:Canada; D003431:Cross-Cultural Comparison; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008393:Marriage; D008875:Middle Aged; D014481:United States; D014798:Vital Statistics