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Tang OS, Ho PC.Tang OS, et al. Among authors: ho pc.Best Pract Res Clin Obstet Gynaecol. 2002 Apr;16(2):237-46. doi: 10.1053/beog.2001.0273.Best Pract Res Clin Obstet Gynaecol. 2002.PMID: 12041965Review.
Tang OS, Miao BY, Lee SW, Ho PC.Tang OS, et al. Among authors: ho pc.Hum Reprod. 2002 Mar;17(3):654-8. doi: 10.1093/humrep/17.3.654.Hum Reprod. 2002.PMID: 11870118
Tang OS, Lee SW, Ho PC.Tang OS, et al. Among authors: ho pc.Hum Reprod. 2002 Nov;17(11):2865-8. doi: 10.1093/humrep/17.11.2865.Hum Reprod. 2002.PMID: 12407040Clinical Trial.
Tang OS, Lau WN, Ng EH, Lee SW, Ho PC.Tang OS, et al. Among authors: ho pc.Hum Reprod. 2003 Jan;18(1):176-81. doi: 10.1093/humrep/deg013.Hum Reprod. 2003.PMID: 12525463Clinical Trial.
Li CF, Wong CY, Chan CP, Ho PC.Li CF, et al. Among authors: ho pc.Contraception. 2003 Feb;67(2):101-5. doi: 10.1016/s0010-7824(02)00437-7.Contraception. 2003.PMID: 12586320Clinical Trial.
Cheung W, Tang OS, Lee SW, Ho PC.Cheung W, et al. Among authors: ho pc.Contraception. 2003 Aug;68(2):97-9. doi: 10.1016/s0010-7824(03)00134-3.Contraception. 2003.PMID: 12954520Clinical Trial.