1Sanchez R. Urinary calcium as an early marker for preeclampsia[J]. Obstet Gynaecol,1991,77:685-688.
2Barth W Jr. Low dose aspirin for prevention of preeclampsia[J]. N Engl J Med,1998, 338(11): 756-757.
3Wang Z,Li W. prospective randomized placebo-controlled trial of low-dose aspirin for prevention of intra-uterine growth retardation[J]. Chin Med J(Engl) ,1996,109(3): 238-242.
4任焕英.小剂量阿斯匹林改善围产期后果[J].国外医学妇产科分册,1994,8:359-360.
5Caritis S,Sibai B,Hauth J,et al. Low-dose aspirin to prevent in women at high risk[J]. N Eng1 J Med, 1998,12 338(11): 756-757.
