1. Can risk factors, clinical history and symptoms be used to predict risk of ectopic pregnancy in women attending an early pregnancy assessment unit?. (November 2016) Authors: Ayim, F.; Tapp, S.; Guha, S.; Ameye, L.; Al-Memar, M.; Sayasneh, A.; Bottomley, C.; Gould, D.; Stalder, C.; Timmerman, D.; Bourne, T. Journal: Ultrasound in obstetrics & gynecology Issue: Volume 48:Number 5(2016) Page Start: 656 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. OC01.04: A multicentre trial on the performance of a two‐step triage protocol based on initial serum progesterone and serial hCG used to manage pregnancies of unknown location (PUL). (15th October 2018) Authors: Bobdiwala, S.; Christodoulou, E.; Farren, J.; Mitchell‐Jones, N.; Ayim, F.; Chohan, B.; Abughazza, O.; Guruwadahyarhalli, B.; Al‐Memar, M.; Guha, S.; Vathanan, V.; Bottomley, C.; Gould, D.; Stalder, C.; Timmerman, D.; Van Calster, B.; Bourne, T. Journal: Ultrasound in obstetrics & gynecology Issue: Volume 52(2018)Supplement 1 Page Start: 2 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. OC08.06: *Updating and improving the M6 pregnancy of unknown location risk prediction model with clinical variables. (14th September 2022) Authors: Kyriacou, C.; Ledger, A.; Bobdiwala, S.; Pikovsky, M.; Parker, N.; Farren, J.; Mitchell‐Jones, N.; Ayim, F.; Chohan, B.; Guha, S.; Kirk, E.; Abughazza, O.; Al‐Memar, M.; Vathanan, V.; Gould, D.; Stalder, C.; Timmerman, D.; Van Calster, B.; Bourne, T. Journal: Ultrasound in obstetrics & gynecology Issue: Volume 60(2022)Supplement 1 Page Start: 25 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. OC09.04: Assessing progesterone cut‐off levels in pregnancies classified as a pregnancy of unknown location using transvaginal ultrasonography. (15th October 2020) Authors: Kyriacou, C.; Bobdiwala, S.; Doulgeraki, T.; Fourie, H.; Farren, J.; Mitchell‐Jones, N.; Ayim, F.; Chohan, B.; Guha, S.; Kirk, E.; Abhugazza, O.; Al‐Memar, M.; Vathanan, V.; Gould, D.; Stalder, C.; Timmerman, D.; Bourne, T. Journal: Ultrasound in obstetrics & gynecology Issue: Volume 56(2020)Supplement 1 Page Start: 26 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5. OC13.01: The role of progesterone for the prediction of viability in pregnancies of unknown location (PUL): a multicentre study. (September 2016) Authors: 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.; Ahmed, S.; Gould, D.; Sur, S.; Stalder, C.; Timmerman, D.; Van Calster, B.; Bourne, T. Journal: Ultrasound in obstetrics & gynecology Issue: Volume 48(2016)Supplement 1 Page Start: 23 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
6. OC16.01: The role of human chorionic gonadotrophin and transvaginal ultrasound in pregnancies of unknown location beyond 48 hours. (30th September 2019) Authors: Kyriacou, C.; Bobdiwala, S.; Elkington, I.; Farren, J.; Mitchell‐Jones, N.; Ayim, F.; Chohan, B.; Guha, S.; Kirk, E.; Abughazza, O.; Al‐Memar, M.; Vathanan, V.; Gould, D.; Stalder, C.; Timmerman, D.; Bourne, T. Journal: Ultrasound in obstetrics & gynecology Issue: Volume 54(2019)Supplement 1 Page Start: 38 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
7. OC16.04: External validation of the M6 model and the two‐step triage system for pregnancies of unknown location. (30th September 2019) Authors: Christodoulou, E.; Bobdiwala, S.; Kyriacou, C.; Farren, J.; Mitchell‐Jones, N.; Ayim, F.; Chohan, B.; Abhugazza, O.; Guruwadahyarhalli, B.; Al‐Memar, M.; Guha, S.; Vathanan, V.; Gould, D.; Stalder, C.; Wynants, L.; Timmerman, D.; Bourne, T.; Van Calster, B. Journal: Ultrasound in obstetrics & gynecology Issue: Volume 54(2019)Supplement 1 Page Start: 40 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
8. OC19.05: Evaluating cut‐off values for progesterone, single hCG and hCG ratio to define pregnancy viability and location in women with a pregnancy of unknown location (PUL). (15th October 2018) Authors: Bobdiwala, S.; Christodoulou, E.; Kyriacou, C.; Farren, J.; Mitchell‐Jones, N.; Ayim, F.; Chohan, B.; Abughazza, O.; Guruwadahyarhalli, B.; Al‐Memar, M.; Guha, S.; Vathanan, V.; Bottomley, C.; Gould, D.; Stalder, C.; Timmerman, D.; Van Calster, B.; Bourne, T. Journal: Ultrasound in obstetrics & gynecology Issue: Volume 52(2018)Supplement 1 Page Start: 46 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
9. OP11.02: Endometrial thickness and its value in triaging women with a pregnancy of unknown location. (September 2017) Authors: Bobdiwala, S.; Farren, J.; Mitchell‐Jones, N.; Ayim, F.; Abughazza, O.; Al‐Memar, M.; Bottomley, C.; Gould, D.; Stalder, C.; Timmerman, D.; Bourne, T. Journal: Ultrasound in obstetrics & gynecology Issue: Volume 50(2017)Supplement 1 Page Start: 80 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
10. OP18.02: A multicentre study to predict outcome in pregnancies of unknown location (PUL): the role of the bleeding score. (September 2016) Authors: 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.; Ahmed, S.; Gould, D.; Sur, S.; Stalder, C.; Timmerman, D.; Van Calster, B.; Bourne, T. Journal: Ultrasound in obstetrics & gynecology Issue: Volume 48(2016)Supplement 1 Page Start: 108 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗