Fig. 1From: Low bone mineral density is a potential risk factor for symptom onset and related with hypocitraturia in urolithiasis patients: a single-center retrospective cohort studyStudy design chart. *Examined for high-risk stone formers using at least one collection after surgical intervention and/or during clinic follow-up. #Examined for high-risk stone formers with suspicion of bone mineral abnormalities within 6 months of 24-h urine collection. NCU, Nagoya City University Hospital; BMD, bone mineral densityBack to article page