Commissioned reviewers: please paste your review here and click submit - it will be emailed to the editorial team (no need to send it separately). We don't advise writing straight onto this form in case of connectivity problems.
Please note the reduced and strictly enforced word counts (as of November 2014), in a bid to be more mobile-friendly and to keep reviews short and punchy. We know it can be hard squeezing in all the relevant info, so make every word count, and be selective in the detail.
Thank you!