I am a student hoping to kick start my research career (biochemistry). I hope to start a PhD in the coming months and in the meantime have drafted a review which I hope to submit in the next few weeks.
I was wondering if it is important how many second/third/etc authors there are on the paper? At the moment I would have had 3 other people contribute/proof-read my review (including our PI), and potentially a 4th. When it comes to job hunting later on, or becoming a reputable researcher, would they check to see how many other authors worked on this review, or would it only matter that I am first author and the quality of the paper itself? In other words, is the lower the number of authors on a review the better, or does it not matter?