P19.03: A multicentre trial on the performance and complications of a two‐step triage protocol based on initial serum progesterone and serial serum hCG to manage pregnancy of unknown location (PUL). (September 2016) - Bobdiwala, S.; Farren, J.; Mitchell‐Jones, N.; Al‐Memar, M.; Ayim, F.; Chohan, B.; Guruwadahyarhalli, B.; Taheri, M.; Abughazza, O.; Guha, S.; Vathanan, V.; Bottomley, C.; et al.