1. Geographical distribution and prevalence of nutritional deficiency diseases in East Java, Indonesia (Blitar, Trenggalek, Sidoarjo, Lamongan and Pamekasan)
2. Geographical distribution and prevalence of nutritional deficiency diseases in East Java, Indonesia (Tuban, Bangkalan, Sumenep, Sampang)
3. Food consumption and nutrional status of mothers and preschool children in Sidoarjo and Madura.