1. Who Forms Stones and Why?
Hans-Göran Tiselius 
European Urology Supplements 
Volume 10, Issue 5, Pages (October 2011)
DOI: /j.eursup
Copyright © 2011 European Association of Urology Terms and Conditions

2. Fig. 1
Simplified overview of steps in calcium oxalate stone formation.
AP=ion-activity product; CaOx=calcium oxalate; CaP=calcium phosphate.
European Urology Supplements  , DOI: ( /j.eursup )
Copyright © 2011 European Association of Urology Terms and Conditions

3. Fig. 2
Relationship between pH and the ion-activity product of uric acid.
AP=ion-activity product.
European Urology Supplements  , DOI: ( /j.eursup )
Copyright © 2011 European Association of Urology Terms and Conditions

4. Fig. 3
Relationship between pH and the ion-activity product of cystine.
AP=ion-activity product.
European Urology Supplements  , DOI: ( /j.eursup )
Copyright © 2011 European Association of Urology Terms and Conditions