Declaration of Conflicting InterestsThe author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: G.S.M. has received grant or research support from National Health and Medical Research Council, Australian Rotary Health, NSW Health, American Foundation for Suicide Prevention, Ramsay Research and Teaching Fund, Elsevier, AstraZeneca, Janssen-Cilag, Lundbeck, Otsuka and Servier; and has been a consultant for AstraZeneca, Janssen-Cilag, Lundbeck, Otsuka and Servier. He is the recipient of an investigator-initiated grant from Janssen-Cilag (PoET Study), joint grant funding from the University of Sydney and National Taiwan University (Ignition Grant) and grant funding from The North Foundation. E.B. has received joint grant funding from the University of Sydney and National Taiwan University (Ignition Grant), grant funding from The North Foundation, and grant funding from the Greek Young Matrons’ Association (GYMA). K.S. and G.S. have received grant funding from the Greek Young Matrons’ Association (GYMA). S.K. has received grant or research support from the Australian Research Council, the National Health and Medical Research Council and Cancer Australia. J.C.L.L has received funding as a consultant on a US NIH grant. S.H. has no conflict of interest to declare.The views presented in this manuscript are solely those of the authors and do not reflect the views of any organisation or institution. None of the authors participated in the peer-review of this paper.