Hi Mary Goldman
Our doubt is if the two samples were taken at the same time or were taken at different times (before treatment and after treatment (surgery)), this would help a lot to determine if our study will be longitudinal and transverse to subsequently determine if our study is going to be a longitudinal and transverse study, and if it is going to be a transverse study, this would help a lot to determine if our study is going to be a longitudinal and transverse study.
I hope you can help us, thank you very much.