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Tsahalina E, Woolas RP, Carter PG, Chan F, Gore ME, Blake PM, Shepherd JH, Barton DP.Tsahalina E, et al. Among authors: carter pg.Br J Obstet Gynaecol. 1999 Sep;106(9):964-8. doi: 10.1111/j.1471-0528.1999.tb08438.x.Br J Obstet Gynaecol. 1999.PMID: 10492110
Butler-Manuel SA, Gould DA, Thomas SM, Carter PG, Barton DP.Butler-Manuel SA, et al. Among authors: carter pg.Br J Obstet Gynaecol. 1997 Dec;104(12):1413-5. doi: 10.1111/j.1471-0528.1997.tb11014.x.Br J Obstet Gynaecol. 1997.PMID: 9422023No abstract available.