@misc{indiciae1129df1dd6d8, title = {Optimizing the design of web-based questionnaires--experience from a population-based study among 50,000 women.}, author = {Alexandra Ekman and Asa Klint and Paul W Dickman and Hans-Olov Adami and Jan-Eric Litton}, year = {2007}, doi = {10.1007/s10654-006-9091-0}, url = {https://pubmed.ncbi.nlm.nih.gov/17206467/}, note = {Source identifier: 17206467} }