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Social Science & Medicine > 2009 > 69 > 8 > 1194-1203
Journal of the Chinese Medical Association > 2006 > 69 > 9 > 428-435
Social Science & Medicine > 2009 > 69 > 8 > 1194-1203
Journal of the Chinese Medical Association > 2006 > 69 > 9 > 428-435