https://www.urofrance.org/fileadmin/medias/fmc/2011-12-01_traitement-medical-lithiase/notes/05_Lithiase-radiotransparente.pdf
https://www.urofrance.org/fileadmin/medias/fmc/2011-12-01_traitement-medical-lithiase/notes/05_Lithiase-radiotransparente.pdf
