to examine the short-term regulation of sodium excretion , plasma volume , and the renin-aldosterone system in pregnancy , women in their first pregnancy received either a high-salt ( hs ) ( 250 mmol/day ) or a low-salt ( ls ) ( 20 mmol/day ) diet for 7 days during the second and third trimester and after delivery ( total 213 studies ) .
C0032961
women
C0032981
third trimester