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. 2013 Jul 23;8(7):e70254. doi: 10.1371/journal.pone.0070254

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© 2013 Mavhu et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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^aComputer assisted personal interview. ^bFour 12 year old participants were mistakenly administered ACASI, and five participants <12 years of age were mistakenly administered CAPI. ^cAudio computer assisted survey instrument. dShona Symptom Questionnaire.