Abundant year and lean year
to make up deficiency of poor-harvest year with surplus of abundant-harvest year
ABO fetal maternal incompatibility
Additive dominance model with cytoplasmic and maternal effects
advanced maternal age pregnant women
Antenatal maternal factors
audit of maternal mortality
behaviors patterns of maternal instruction
Cell-free fetal DNA in maternal plasma
cultivated maternal tree
Disrupted maternal affective communication
essential maternal and health care
Fetal DNA in maternal blood
Fetus and newborn affected by maternal death
Fetus and newborn affected by maternal injury
genes with maternal effects