TY  - RPRT
TI  - Third variable analysis: application to causal sequences among nutrient intake, maternal weight, birthweight, placental weight, and gestation.
AU  - M Susser
AU  - Z Stein
DO  - 10.1002/sim.4780010203
UR  - https://pubmed.ncbi.nlm.nih.gov/7187086/
ID  - 7187086
ER  -