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380 Social & Preventive Medicine

In Target 10 of Goal 7 of Millennium Development Goal, “access” to an improved water source mean?

AAvailability of at least 20L water / person/ day from a source within 1 km of dwelling
BAvailability of at least 20L water / person/ day from a source within 1.5 km of dwelling
CAvailability of at least 15L water / person/ day from a source within 1 km of dwelling
DAvailability of at least 15L water / person/ day from a source within 1.5 km of dwelling
Social & Preventive Medicine
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