DOI:
10.1055/s-00000020
Geburtshilfe und Frauenheilkunde
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References
Smith A.
Cell Internet use 2012. Pew Internet and American Life Project.
Online:
http://www.pewinternet.org/~/media//Files/Reports/2012/PIP_Cell_Phone_Internet_Access.pdf 2012; Stand: 26.06.2012
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