Is this sentence correct?

Hi,

We have compared the results from different studies on a specific subject and found that there are some differences between ours and some other studies. We have accounted for the differences as below:

"Yet, methodological differences between different studies should be taken into account; also, exposure length, light intensity and biological time of exposure are the factors that affect cortisol and melatonin levels."

Is the above sentence grammatically correct?

Thanks!