fetal death

Fetal death of unspecified cause

fetal death rate

Infectious fetal death

intrauterine fetal death

Intra-uterine fetal death

intra-uterine fetal death IUFD

intra-uterine fetal death(IUFD)

single fetal death

birth death ratio

birth-death ratio

cause-specific death ratio

death ratio

standard death ratio

cot death cot or crib death

axial compression ratio and slenderness ratio

B-C ratio (benefit-cost ratio)

benefit-cost ratio (B-C ratio)

focal ratio (=focal-length ratio)