Home › Authors › J. G. Grudzinskas 👤 J. G. Grudzinskas 6 books Books by J. G. Grudzinskas Screening for Down syndrome in the first trimester 1997 Gametes - the Spermatozoon 1995 Screening for Down's syndrome 1994 Spontaneous abortion 1984 Pregnancy proteins 1982 Problems in early pregnancy