02 NIS 2002-2011 Concatenate
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https://figshare.com/articles/dataset/02_NIS_2002-2011_Concatenate/3568839/2
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<br>Jordan A. Kempker, MD, MSc June 23, 2016 NIS Across-Year Concatenation 1. First, contents of each year are examined and cross-referenced with data dictionaries to ensure accuracy and completion. 2. All years are concatenated 3. The variable H_CONTRL was only made avaialble for 2002-2007 in a supplemental file so it must be merged in. - both datasets are sorted by YEAR then HOSPID for merge
创建时间：
2016-08-11
