title: Breakthrough in understanding of osteoporosis.
mesh_terms: D000818:Animals; D050281:Bones of Lower Extremity / Q000166:cytology*; D001133:Bones of Upper Extremity / Q000166:cytology*; D010024:Osteoporosis / Q000235:genetics / Q000473:pathology*; D051381:Rats; D012886:Skull / Q000166:cytology*