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1 Studies on the prenatal chromosomal analysis and the changes of maternal serum alpha-fetoprotein following chorionic villus sampling
Young Ho Yang, Meong Sun Lee, Yong Won Park, Sei Kwang Kim, Hae Ree Sung, Chang Hoon Lee, In Kyu Kim
Yonsei Med J.1991;32(4):292-302.   Published online 2002 February 20     DOI: http://dx.doi.org/10.3349/ymj.1991.32.4.292
      

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