Authors:
Hennessey, KA
Ion-Nedelcu, N
Craciun, MD
Toma, F
Wattigney, W
Strebel, PM
Citation: Ka. Hennessey et al., Measles epidemic in Romania, 1996-1998: Assessment of vaccine effectiveness by case-control and cohort studies, AM J EPIDEM, 150(11), 1999, pp. 1250-1257