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42. Pregnancy associated plasma protein A in Down's syndrome. Macintosh MC; Chard T BMJ; 1992 Aug; 305(6850):425. PubMed ID: 1382770 [No Abstract] [Full Text] [Related]
43. Serum screening for Down's syndrome between 8 and 14 weeks of pregnancy. Odibo A Br J Obstet Gynaecol; 1996 Nov; 103(11):1173-4. PubMed ID: 8917014 [No Abstract] [Full Text] [Related]
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45. Serum PAPP-A levels are depressed in women with fetal Down syndrome in early pregnancy. Muller F; Cuckle H; Teisner B; Grudzinskas JG Prenat Diagn; 1993 Jul; 13(7):633-6. PubMed ID: 7692431 [TBL] [Abstract][Full Text] [Related]
46. Can safety assurance procedures in the food industry be used to evaluate a medical screening programme? The application of the Hazard Analysis and Critical Control Point system to an antenatal serum screening programme for Down's syndrome. Stage 2: overcoming the hazards in programme delivery. Derrington MC; Draper ES; Hsu RT; Kurinczuk JJ J Eval Clin Pract; 2003 Feb; 9(1):49-57. PubMed ID: 12558702 [TBL] [Abstract][Full Text] [Related]
47. Presentation of screen negative results on serum screening for Down's syndrome: variations across Britain. Allanson A; Michie S; Marteau TM J Med Screen; 1997; 4(1):21-2. PubMed ID: 9200058 [TBL] [Abstract][Full Text] [Related]
48. Safety first: choices in antenatal screening for Down's syndrome. Canick J J Med Screen; 2003; 10(2):55. PubMed ID: 12831122 [No Abstract] [Full Text] [Related]
49. Down's syndrome screening: where to now? Whittle M BJOG; 2001 Jun; 108(6):559-61. PubMed ID: 11426887 [No Abstract] [Full Text] [Related]
50. Screening for Down's syndrome. Keatinge R Lancet; 1992 Oct; 340(8826):1034. PubMed ID: 1357418 [No Abstract] [Full Text] [Related]
51. Correlation of marker values in Down's syndrome screening: the effect of dating error. Dunstan FD; Iles TC; Nix AB; Williams K Ann Clin Biochem; 1999 Jul; 36 ( Pt 4)():460-7. PubMed ID: 10456208 [TBL] [Abstract][Full Text] [Related]
54. Inhibin-A in Down's syndrome pregnancies: revised estimate of standard deviation. Wald NJ; Densem JW; George L; Muttukrishna S; Knight PG; Watt H; Hacksaw A; Morris JK Prenat Diagn; 1997 Mar; 17(3):285-90. PubMed ID: 9110376 [No Abstract] [Full Text] [Related]
55. Ethnic differences in outcome of serum screening for Down's syndrome. Differences in median values may account for differences in false positive rates. Ford C; Moore A; Bartlett WA; Jones AF BMJ; 1996 Apr; 312(7037):1040-1. PubMed ID: 8616371 [No Abstract] [Full Text] [Related]
56. Ethnic differences in outcome of serum screening for Down's syndrome. For appreciable ethnic differences in false positive rates, use different cut off points. Holloway PJ; Bulusu S BMJ; 1996 Apr; 312(7037):1041. PubMed ID: 8616372 [No Abstract] [Full Text] [Related]