Rabu, 15 Agustus 2012

MMWR: Youth Risk Behavior Surveillance—United States, 2009

MMWR report on The Youth Risk Behavioral Surveillance System monitors six categories of priority health-risk behaviors among youth and young adults.

Source: http://www.cdc.gov/mmwr/preview/mmwrhtml/ss5905a1.htm?s_cid=ss5905a1_e

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