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Chinese Netizens Show Off Slim Waists in 'A4 Challenge
Vmeshou唯蜜瘦健康塑形
A4Waist: Chinese Netizens Show Off Paper-Thin Waist Behind A Sheet
What Is the A4 Waist Challenge?
A4 waist challenge: The thinner, the better?[1]
Comparing your waist to width of A4 sheet of paper: Sick new trend
Vmeshou唯蜜瘦健康塑形
Viral trend sees teens measure their WAIST against A4 paper
A4 waist challenge - new trend for women to slim down to thinner