E-cigarette use by Ontario public elementary school and secondary school students: Has the use among sociodemographic groups changed from 2017 to 2019?

por Pederson, Linda L., Koval, John J., Vingilis, Evelyn
Publicado 2023

Population-Based Placental Weight Ratio Distributions

por Macdonald, Erin M., Koval, John J., Natale, Renato, Regnault, Timothy, Campbell, M. Karen
Publicado 2014

Corrigendum to “Population-Based Placental Weight Ratio Distributions”

por Macdonald, Erin M., Koval, John J., Natale, Renato, Regnault, Timothy R. H., Campbell, M. Karen
Publicado 2015

Socioeconomic status and non-fatal injuries among Canadian adolescents: variations across SES and injury measures

por Potter, Beth K, Speechley, Kathy N, Koval, John J, Gutmanis, Iris A, Campbell, M Karen, Manuel, Douglas
Publicado 2005

Is there value in using physician billing claims along with other administrative health care data to document the burden of adolescent injury? An exploratory investigation with com...

por Potter, Beth K, Manuel, Douglas, Speechley, Kathy N, Gutmanis, Iris A, Campbell, M Karen, Koval, John J
Publicado 2005