%0 Journal Article %T Guy's Stone Score (GSS) Based on Intravenous Pyelogram (IVP) Findings Predicting Upper Pole Access Percutaneous Nephrolithotomy (PCNL) Outcomes %A Bannakij Lojanapiwat %A Pattara Rod-Ong %A Pruit Kitirattrakarn %A Wilaiwan Chongruksut %J Archive of "Advances in Urology". %D 2016 %R 10.1155/2016/5157930 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5143681/