Sven K, Josipa F. Interstitial hydrostatic pressure: a manualfor students. Adv Physiol Educ 31: 116–117, 2007; http://advan.physiology.org/cgi/content/full/31/1/116.The authors' names are Sven Kurbel and Josipa Flam. Therefore,the correct citation should be as follows: Kurbel S, Flam J.Interstitial hydrostatic pressure: a manual for students. AdvPhysiol Educ 31: 116–117, 2007; http://advan.physiology.org/cgi/content/full/31/1/116.