Variation in coronary risk factor levels of men and women between German-speaking MONICA centres. - Marti,B.; Rickenbach,M.; Keil,U.; Stieber,J.; Greiser,E.; Herman,B.; Heinemann,L.; Assmann,A.; Schädlich,H.; Nüssel,E.; Östör-Lamm,E.; Gutzwiller,F. (Rev Epidemiol Sante Publique, 1990)