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This, however, only accounts for a small proportion of women with a pregnancy of unknown PUL location. There remains a clear clinical need to rationalize the follow-up of PUL so women at high risk of having a final outcome of an ectopic pregnancy are followed up more intensively and those PUL at low risk of having an ectopic pregnancy have their follow-up streamlined. This review covers the main management strategies published in the current literature and aims to give clinicians an overview of the most up-to-date evidence that they can take away into their everyday clinical practice when caring for women with a PUL.<\/jats:p>","DOI":"10.1177\/1745505717709677","type":"journal-article","created":{"date-parts":[[2017,6,29]],"date-time":"2017-06-29T06:06:54Z","timestamp":1498716414000},"page":"27-33","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":23,"title":["Factors to consider in pregnancy of unknown location"],"prefix":"10.1177","volume":"13","author":[{"given":"Shabnam","family":"Bobdiwala","sequence":"first","affiliation":[{"name":"Tommys\u2019 National Centre for Miscarriage Research, Queen Charlottes\u2019 & Chelsea Hospital, Imperial College, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maya","family":"Al-Memar","sequence":"additional","affiliation":[{"name":"Tommys\u2019 National Centre for Miscarriage Research, Queen Charlottes\u2019 & Chelsea Hospital, Imperial College, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jessica","family":"Farren","sequence":"additional","affiliation":[{"name":"Tommys\u2019 National Centre for Miscarriage Research, Queen Charlottes\u2019 & Chelsea Hospital, Imperial College, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tom","family":"Bourne","sequence":"additional","affiliation":[{"name":"Tommys\u2019 National Centre for Miscarriage Research, Queen Charlottes\u2019 & Chelsea Hospital, Imperial College, London, UK"},{"name":"Department of Development and Regeneration, KU Leuven, Leuven, Belgium"},{"name":"Department of Obstetrics and Gynaecology, University Hospitals Leuven, Campus Gasthuisberg, KU Leuven, Leuven, Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2017,6,29]]},"reference":[{"key":"bibr1-1745505717709677","unstructured":"NICE guidelines [CG154]. 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