作者: ANATOLY V. LICHTENSTEIN , HOVSEP S. MELKONYAN , L. DAVID TOMEI , SAMUIL R. UMANSKY
DOI: 10.1111/J.1749-6632.2001.TB03892.X
关键词:
摘要: … is equivalent to the half-life of circulating fetal DNA in the bloodstream of a pregnant woman.… or dead epithelial cells are shed directly into the lumen as the villus structures of the mucosa …