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Chung HT, Tam AY, Wong V, Li DF, Ma JT, Huang CY, Yu YL, Woo E.Chung HT, et al. Among authors: li df.Postgrad Med J. 1987 Jul;63(741):555-7. doi: 10.1136/pgmj.63.741.555.Postgrad Med J. 1987.PMID: 3309917Free PMC article.
Li DF, Wong VC, O'Hoy KM, Ma HK.Li DF, et al.Br J Obstet Gynaecol. 1987 Sep;94(9):847-50. doi: 10.1111/j.1471-0528.1987.tb03752.x.Br J Obstet Gynaecol. 1987.PMID: 3663546
Li DF, Wang ZQ, Wong VC, Ma HK.Li DF, et al.Int J Gynaecol Obstet. 1988 Aug;27(1):7-10. doi: 10.1016/0020-7292(88)90080-x.Int J Gynaecol Obstet. 1988.PMID: 2905302
Wong VC, Leung PM, Li DF.Wong VC, et al. Among authors: li df.Int J Gynaecol Obstet. 1989 Sep;30(1):37-40. doi: 10.1016/0020-7292(89)90212-9.Int J Gynaecol Obstet. 1989.PMID: 2572470
Lam KS, Li DF, Lauder IJ, Lee CP, Kung AW, Ma JT.Lam KS, et al. Among authors: li df.Diabetes Res Clin Pract. 1991 Jul;12(3):181-6. doi: 10.1016/0168-8227(91)90075-o.Diabetes Res Clin Pract. 1991.PMID: 1889347
Kung AW, Ma JT, Wong VC, Li DF, Ng MM, Wang CC, Lam KS, Young RT, Ma HK.Kung AW, et al. Among authors: li df.Contraception. 1987 Mar;35(3):257-69. doi: 10.1016/0010-7824(87)90027-8.Contraception. 1987.PMID: 3111786
King PA, Li DF, Ngan HY, Ma HK.King PA, et al. Among authors: li df.Br J Obstet Gynaecol. 1989 Aug;96(8):1000-2. doi: 10.1111/j.1471-0528.1989.tb03364.x.Br J Obstet Gynaecol. 1989.PMID: 2775682No abstract available.
Duthie SJ, Li DF, To WK, Ma HK.Duthie SJ, et al. Among authors: li df.Aust N Z J Obstet Gynaecol. 1988 Aug;28(3):162-5. doi: 10.1111/j.1479-828x.1988.tb01654.x.Aust N Z J Obstet Gynaecol. 1988.PMID: 3233077