Can qualitative survey be considered a type of interview as well?

Examples of studies using "written interviews":

1. http://nsuworks.nova.edu/cgi/viewcontent.cgi?article=1383&context=tqr

2. The written interview in hysterical mutism. http://www.sciencedirect.com.dbgw.lis.curtin.edu.au/science/article/pii/S0033318281735278

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