@misc{indiciae3807065a1580, title = {Selective migration by birthweight.}, author = {C N Martyn and D J Barker and C Osmond}, year = {1993}, doi = {10.1136/jech.47.1.76}, url = {https://pubmed.ncbi.nlm.nih.gov/8436901/}, note = {Source identifier: 8436901} }