11 | Add to Reading ListSource URL: www.drugabuse.govLanguage: English - Date: 2013-09-12 15:53:41
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12 | Add to Reading ListSource URL: www.monitoringthefuture.orgLanguage: English - Date: 2014-10-15 08:40:48
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13 | Add to Reading ListSource URL: monitoringthefuture.orgLanguage: English - Date: 2014-10-15 08:40:48
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14 | Add to Reading ListSource URL: safesupportivelearning.ed.govLanguage: English - Date: 2014-10-17 12:48:13
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15 | Add to Reading ListSource URL: www.monitoringthefuture.orgLanguage: English - Date: 2010-11-18 13:21:23
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16 | Add to Reading ListSource URL: acwi.govLanguage: English - Date: 2005-06-16 10:26:52
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17 | Add to Reading ListSource URL: nasadad.orgLanguage: English - Date: 2009-12-23 00:00:00
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18 | Add to Reading ListSource URL: poq.oxfordjournals.orgLanguage: English |
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19 | Add to Reading ListSource URL: www.icpsr.umich.eduLanguage: English - Date: 2012-11-02 10:27:39
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20 | Add to Reading ListSource URL: safesupportivelearning.ed.govLanguage: English - Date: 2011-12-24 14:52:12
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