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Safe drinking for the old / Bottle

Safe drinking for the old

The old man is growing at 80 million to 90 million a year,when drinking mineral water, there are always too much watered to a spill or chokes, greater risk if the old man to drink.

University

University of South China

University of South China
Hengyang, China

Zhong Haiyan,
University of South China

Zhu Weiji,
University of South China

Su Ping,
University of South China

Gao Dapeng,
University of South China

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