No. This resource is free and always will be.
Some users have emailed me, however, asking if they can donate to a charity to say thank you.
Donate however much you want. For every GBP £10.00 you donate the PDK Charity receives £12.20 (assuming Gift Aid is added, and after deduction of a processing fee).
If you find it useful, you might want to say thank you.
I started creating these files for my own use in 2004 and started sharing it with a few colleagues. There are now people all over the world using it.
Each year it takes me about 6–8 weeks to compile and test these files.
I do it to glorify God and as a practical resource for my colleagues and friends in the Scottish Episcopal Church (which is in communion with the world-wide Anglican communion).
My family has been affected by polycystic kidney disease (PKD).
My late father had autosomal dominant polycystic kidney disease (ADPKD), and died of kidney failure in January 1998. I have ADPDK, my sister and brother both have ADPKD; there is a 50/50 chance that my children have ADPKD.
The PKD Charity was established in December 2000 by patients, professionals and members of families affected by PKD, they have provided tremendous support to members of my family and work to fund research into determining the causes of polycystic kidney disease and into discovering treatments and a cure for PKD.