from the first trimester and throughout pregnancy , the absolute counts of t ( cd3 ) and b ( cd20 ) and t-cell subsets ( cd4 , cd8 ) decreased with a decrease in the absolute lymphocyte count , although the proportions of these cells remained unchanged except for a decrease in the percentage of t helper-inducer ( cd4 ) cells in the first trimester .
C0032961
pregnancy
C0032979
first trimester