Inclusion and exclusion criteria must be clearly defined;Characterize how infertility factors in participants were evaluated, describe the definitions used, and the settings where the data were collected;Define which ovarian marker, AFC or AMH or both, was used to classify the patients as per the POSEIDON criteria, and describe the methods for AFC/AMH measurements;In POSEIDON groups 1 and 2 studies, previous ovarian stimulation should be characterized;The preferred unit of analysis is ‘patient’ rather than ‘cycle’. Here, AMH is linked to Infertility.