Pin or prosthesis?
D000368:Aged; D005260:Female; D005265:Femoral Neck Fractures / Q000601:surgery*; D005592:Fracture Fixation; D006801:Humans; D007869:Leg Injuries / Q000401:mortality; D009336:Necrosis; D019736:Prostheses and Implants / Q000009:adverse effects