Bones need calcium and vitamin D to grow and reach their full strength.

VOA: special.2009.02.04

Several American reports say the peace deals have helped the Taliban grow in strength and in numbers.

NPR: Taliban Tightens Grip Near Northern Pakistan Border

Former Manchester United star Eric Cantona said on Monday that the club would continue to grow from strength to strength, whether Ronaldo stayed or not.

BBC: Real deny Man Utd Ronaldo claims

Finding that special strength that can then grow to mass scale is increasingly the key to success.

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