The presence of contact details in registered records in 2008/2009 and 2012.
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https://figshare.com/articles/dataset/_The_presence_of_contact_details_in_registered_records_in_2008_2009_and_2012_/899504
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Legend Table 2: Percentages of records for which different aspects of contact details were present in 2008/2009 and 2012.
* = significant difference between 2008/2009 and 2012.
1 Numbers of records for subcategories do not add up to total because in 2008/2009 for one trial no primary sponsor was registered and in 2012 for three trials no primary sponsor was registered.
创建时间：
2014-01-10
