Natalia Loekito, Tirza Z. Tamin and I Nyoman Murdana (2016) “Severe Degree of The Obesity Has More Comorbid Factors and more Severe of The Knee Osteoarthritis”, Indonesian Journal of Physical Medicine and Rehabilitation, 5(02), pp. 1 - 8. doi: 10.36803/ijpmr.v5i02.211.