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of maternal deaths in the first trimester ? Constituting 12% of all conceptions ? Subsequent infertility ? Incidence increasing ? Mortality decreasing with better detection Tubal pregnancy 輸卵管妊娠 Incidence of tubal pregnancy by location Incidence of tubal pregnancy by location Interstitial 23% isthmic 12% Ampullary 78% Fimbrial 5% Which women are at higher risk for tubal pr