1. Midwife, Registered Nurse, Departments of Quality Control, Research and Continuing Education, Elena Venizelou Maternity Hospital, Athens, Greece,
2. Department of Nutrition and Dietetics, Harokopeion University of Athens, Greece,
3. Neonatologist, Human Milk Bank, NICU, Elena Venizelou Maternity Hospital, Athens, Greece, and
4. Assistant Professor of Enteral and Parenteral Nutrition, Department of Science of Dietetics-Nutrition, Harokopeion University of Athens, Greece