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The validity of gestational age estimation by menstrual dating in term, preterm, and postterm gestations.
Kramer MS, McLean FH, Boyd ME, Usher RH. Kramer MS, et al. Among authors: usher rh. JAMA. 1988 Dec 9;260(22):3306-8. JAMA. 1988. PMID: 3054193
Obstetric consequences of postmaturity.
Boyd ME, Usher RH, McLean FH, Kramer MS. Boyd ME, et al. Among authors: usher rh. Am J Obstet Gynecol. 1988 Feb;158(2):334-8. doi: 10.1016/0002-9378(88)90150-0. Am J Obstet Gynecol. 1988. PMID: 3277431
How does early ultrasound scan estimation of gestational age lead to higher rates of preterm birth?
Yang H, Kramer MS, Platt RW, Blondel B, Bréart G, Morin I, Wilkins R, Usher R. Yang H, et al. Am J Obstet Gynecol. 2002 Mar;186(3):433-7. doi: 10.1067/mob.2002.120487. Am J Obstet Gynecol. 2002. PMID: 11904603
Algorithms for combining menstrual and ultrasound estimates of gestational age: consequences for rates of preterm and postterm birth.
Blondel B, Morin I, Platt RW, Kramer MS, Usher R, Bréart G. Blondel B, et al. BJOG. 2002 Jun;109(6):718-20. doi: 10.1111/j.1471-0528.2002.01068.x. BJOG. 2002. PMID: 12118654
Why are babies getting bigger? Temporal trends in fetal growth and its determinants.
Kramer MS, Morin I, Yang H, Platt RW, Usher R, McNamara H, Joseph KS, Wen SW. Kramer MS, et al. J Pediatr. 2002 Oct;141(4):538-42. doi: 10.1067/mpd.2002.128029. J Pediatr. 2002. PMID: 12378194
Determinants and consequences of discrepancies in menstrual and ultrasonographic gestational age estimates.
Morin I, Morin L, Zhang X, Platt RW, Blondel B, Bréart G, Usher R, Kramer MS. Morin I, et al. BJOG. 2005 Feb;112(2):145-52. doi: 10.1111/j.1471-0528.2004.00311.x. BJOG. 2005. PMID: 15663577
How small is too small in a twin pregnancy?
Hamilton EF, Platt RW, Morin L, Usher R, Kramer M. Hamilton EF, et al. Am J Obstet Gynecol. 1998 Sep;179(3 Pt 1):682-5. doi: 10.1016/s0002-9378(98)70064-x. Am J Obstet Gynecol. 1998. PMID: 9757971
Terminal digit preference, random error, and bias in routine clinical measurement of blood pressure.
Wen SW, Kramer MS, Hoey J, Hanley JA, Usher RH. Wen SW, et al. Among authors: usher rh. J Clin Epidemiol. 1993 Oct;46(10):1187-93. doi: 10.1016/0895-4356(93)90118-k. J Clin Epidemiol. 1993. PMID: 8410103
Comparison of birth weight distributions between Chinese and Caucasian infants.
Wen SW, Kramer MS, Usher RH. Wen SW, et al. Among authors: usher rh. Am J Epidemiol. 1995 Jun 15;141(12):1177-87. doi: 10.1093/oxfordjournals.aje.a117391. Am J Epidemiol. 1995. PMID: 7771456
Impact of intrauterine growth retardation and body proportionality on fetal and neonatal outcome.
Kramer MS, Olivier M, McLean FH, Willis DM, Usher RH. Kramer MS, et al. Among authors: usher rh. Pediatrics. 1990 Nov;86(5):707-13. Pediatrics. 1990. PMID: 2235224
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