Identify 2 (total) flaws in either the methods and/or results section and explain why these flaws may invalidate (or at least challenge) the results and overall conclusions of this study.Please type your answers on a word document and submit as an attached.From ” Home-based Rehabilitation With A Novel Digital Biofeedback Systemversus Conventional In-person Rehabilitation after Total Knee Replacement: a feasibility study.From this link belowhttps://www.researchgate.net/publication/326633754_Home-based_Rehabilitation_With_A_Novel_Digital_Biofeedback_System_versus_Conventional_In-person_Rehabilitation_after_Total_Knee_Replacement_a_feasibility_study