There is more information about how beclomethasone (in the form of Flonase) is used in this Medpedia article here: http://wiki.medpedia.com/Clinical:Flonase_%28fluticasone_propionate%29#Indications_An d_Usage...
Here are a few resources on Medpedia that may be helpful- the Clinical: Prostate Cancer article has a section on screening: http://wiki.medpedia.com/Clinical:Prostate_Cancer#Screening
The format for citing Medpedia depends on the style guide used in the list of references. As stated in Medpedia's Terms of Use (www.medpedia.com/terms), it is required to use a link back to the Medped ia...
There is a Medpedia article page on the Mirena IUD, which can be found here: http://wiki.medpedia.com/Clinical:Mirena_%28Levonorgestrel%29. The article includes some relevant statistics.