1.
Ranking of the number of articles per Gross Expenditure on Research and Development (GERD) of publishing countries with at least 30 articles (threshold).
2.
3.
Comparison of country specific research activities between ovarian cancer research (1900–2014) and cervical cancer research (1900–2015).
Questionnaire.
Detailed statistical analysis.
Overview of datasources.
Questionnaire responses.
Detailed hospital characteristics.
Detailed surgical procedures.
Distribution of hospital uncorrected (non-parametric) DEA scores in proportion to the percentage of severe complications (output).
Descriptive data on population level.