Urol Res,1990,18(Suppl):9‐12.Cystinuria:Excretionofcystinecomplexwhich decomposesinthe urine with theliberationofcystine .Clinical valueofcrystaluriaandquantitativ analysis of u‐rinarycalculi .Resultsof5,035stoneanalyses:acontribution to epidemiol‐ogy of ......