Elsevier, The Lancet, 9890(382), p. 394-395, 2013
DOI: 10.1016/s0140-6736(13)61669-4
Elsevier, The Lancet, 9877(381), p. 1515-1517
DOI: 10.1016/s0140-6736(13)60634-0
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