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. 2014 Jul 25;46(7):e107. doi: 10.1038/emm.2014.43

Table 1. Characteristics of patients with osteoarthritis and osteonecrosis.

  No. of patients Age (years) Gender (F/M)
Osteoarthritis 10 53±7 7/3
Osteonecrosis
 Alcohol 7 52±14 1/6
 Steroid 11 49±15 5/6
 Idiopathic 2 52±8 2/0

Abbreviations: F, female; M, male.