Ovid - Service temporarily unavailable (23:00 on 24th Aug 2017 – 01:00 on 25th Aug 2017) & (18:00 on 26th Aug 2017 – 07:00 on 27th Aug 2017). Ovid users may experience intermittent access during 22:00 on 28th Aug 2017 – 02:00 on 31st Aug 2017