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Shaw LM, Balen A, Lenton E, Brown C, Greenwood B; British Fertility Society; National Infertility Awareness Campaign; CHILD, National Infertility Support Network.Shaw LM, et al. Among authors: balen a.Hum Fertil (Camb). 2002 Nov;5(4):167-74. doi: 10.1080/1464727022000199072.Hum Fertil (Camb). 2002.PMID: 12477958No abstract available.
Mascarenhas M, Kulkarni M, Balen A.Mascarenhas M, et al. Among authors: balen a.Hum Fertil (Camb). 2020 Dec;23(4):275-281. doi: 10.1080/14647273.2018.1563915. Epub 2019 Jan 14.Hum Fertil (Camb). 2020.PMID: 30642210