"Royal Medic No. 1 Chinese Cs-4" was verified to be the top-selling product in Hong Kong for 10 consecutive years (from 2008 to 2018) within its category

"Royal Medic No. 1 Chinese Cs-4" was verified by Nielsen, an international marketing research company, to be the top-selling product in Hong Kong for 10 consecutive years (from 2008 to 2018) within its category.

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