Letter: Increase in fracture of the femur in the elderly.
D000367:Age Factors; D000368:Aged; D005260:Female; D005264:Femoral Fractures / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D010024:Osteoporosis / Q000150:complications / Q000209:etiology; D012737:Sex Factors; D012907:Smoking / Q000150:complications