2. History of: use of intravenous bisphosphonates, more than 12 months of bisphosphonates continuative or strontium ranelate use ever, or any use of bisphosphonates (oral and injective) within the last year, rhPTH use (recombinant human PTH) in the last 2 years, calcitonin use within the past 3 months, raloxifene and tamoxifen in the last 6 months or for more than 12 months in the last 2 years, fluoride (> 1 mg/die) for at least a month within the past 5 years;