LETTER TO THE EDITOR. Re: Second-trimester maternal serum alpha-fetoprotein, human chorionic gonadotropin, and unconjugated oestriol after early transvaginal mutlifetal pregancy reduction

1997 ◽  
Vol 17 (5) ◽  
pp. 487-490 ◽  
Author(s):  
LEE P. SHULMAN ◽  
OWEN P. PHILLIPS
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