Unlike rheumatoid arthritis, osteoarthritis A) affects young ...

[B]

Unlike rheumatoid arthritis, osteoarthritis
 
  A) affects young and old equally.
  B) affects primarily men.
  C) is an autoimmune disorder.
  D) affects primarily older people.

Question 2

Low back pain has many causes. About what percent of back pain patients have an identified, physical cause for their pain?
 
  A) 20
  B) 50
  C) 75
  D) About 40 of men and about 60 of women

[k2629]

Answer to Question 1

D

Answer to Question 2

A

[B]

Great answer, keep it coming

[yeungji]

Thanks for the timely response, appreciate it