Lead-contaminated house dust and urban children's blood lead levels.

od Lanphear, B P, Weitzman, M, Winter, N L, Eberly, S, Yakir, B, Tanner, M, Emond, M, Matte, T D
Izdano 1996

The school-based immunization survey: an inexpensive tool for measuring vaccine coverage.

od Rodewald, L E, Roghmann, K J, Szilagyi, P G, Winter, N L, Campbell, J R, Humiston, S G
Izdano 1993