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. 2018 Jun 15;5:21. doi: 10.1186/s40634-018-0132-x

Fig. 4.

Fig. 4

Multiple regression model incorporating patient GAG levels pre- and post-surgery and MMP3 levels post-surgery to predict patient quality of life. The model shows quality of life (QoL) fits with an R2 of 0.9998 and a p value = 0.0087