Authors:
de Walle, HEK
van der Pal, KM
de Jong-van den Berg, LTW
Jeeninga, W
Schouten, JSAG
de Rover, CM
Buitendijk, SE
Cornel, MC
Citation: Hek. De Walle et al., Effect of mass media campaign to reduce socioeconomic differences in women's awareness and behaviour concerning use of folic acid: cross sectional study, BR MED J, 319(7205), 1999, pp. 291-292