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Bower M, Barton SE, Nelson MR, Bobby J, Smith D, Youle M, Gazzard BG.Bower M, et al. Among authors: barton se.AIDS. 1990 Apr;4(4):317-20. doi: 10.1097/00002030-199004000-00005.AIDS. 1990.PMID: 2161673
Kell PD, Smith DE, Barton SE, Midgley J, Samarasinghe PL, Gazzard BG.Kell PD, et al. Among authors: barton se.Genitourin Med. 1991 Aug;67(4):342-4. doi: 10.1136/sti.67.4.342.Genitourin Med. 1991.PMID: 1655628Free PMC article.
Kell PD, Barton SE, Smith DE, Nelson M, Marwood RP, Gazzard B.Kell PD, et al. Among authors: barton se.Br J Obstet Gynaecol. 1991 Jul;98(7):725-7. doi: 10.1111/j.1471-0528.1991.tb13465.x.Br J Obstet Gynaecol. 1991.PMID: 1883802
Smith N, Nelson MR, Hammond J, Purkayastha S, Barton SE.Smith N, et al. Among authors: barton se.Int J STD AIDS. 1994 May-Jun;5(3):212-3. doi: 10.1177/095646249400500311.Int J STD AIDS. 1994.PMID: 8061094