printed publications, namely, a questionnaire on nutrition

SCIENTIFIC RESEARCH, PROVIDED BY ENGINEERS. MEASUREMENT EVALUATIONS IN THE FIELD OF UNDERNUTRITION, PROVIDED BY ENGINEERS; TECHNOLOGY CONSULTATION AND RESEARCH IN THE FIELD OF UNDERNUTRITION, PROVIDED BY ENGINEERS; TECHNOLOGY CONSULTATION IN THE FIELD OF UNDERNUTRITION, PROVIDED BY ENGINEERS; SCIENTIFIC RESEARCH FOR MEDICAL PURPOSES, NAMELY, EVALUATION OF THE EFFECTS OF UNDERNITRUTION