title: Letter: Bone necrosis in tunnel workers.
mesh_terms: D000328:Adult; D003665:Decompression Sickness / Q000150:complications*; D005271:Femur Head Necrosis / Q000209:etiology / Q000601:surgery*; D006801:Humans; D007595:Joint Prosthesis; D008297:Male; D009784:Occupational Diseases