title: Osteonecrosis vs transient osteoporosis.
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010020:Osteonecrosis / Q000175:diagnosis*; D010024:Osteoporosis / Q000175:diagnosis*; D011247:Pregnancy