How to illustrate a data with time overlap and sizes?

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Anton Vrdoljak

Your Q 'smells' on graphs with secondary axis, here is Youtube-tutorial how to do it in MS Excel: https://www.youtube.com/watch?v=ay67ygT3DHs

Ramin Rostamkhani

Dear researcher,

I have sent the related files to you. I hope to be useful. Of course, the overlap of time is not important if the related studies (study number one to four) are independent. For dependent studies, you should increase the study numbers to the independent study numbers, for example, five or more study numbers.

Good luck.

Nguyen-Phong Vo

Thank your guys so much for your suggestion!