Infants who consulted between January 1st 2000 and December 31st 2009 (this is before the implementation of the pre-convention).

Inclusion criteria:

• Children consulting a pediatric gastroenterologist for feeding problems in UZB between the 1st of January 2000 and the 31st of December 2009 and receiving the label "feeding difficulties".
• The infants have a pediatric feeding disorder that prevent them from feeding normally by oral means.
• The infants need or have needed (enteral or parenteral) artificial nutrition.
• The infants are aged between 0 and 12 years at their first presentation.
• The infants are capable of developing normal feeding behavior.

Infants will be excluded from this study if they:

• Have no 6-months follow-up available.
• Parents refusal to enter a multi-disciplinary approach for the feeding problems of their children.

Infants who consulted after the implementation of the pre-convention, who consulted between January 1st 2010 and December 31st 2021.

Inclusion criteria:

• Children consulting a pediatric gastroenterologist for feeding problems in UZB between the 1st of January 2010 and the 31st of December 2021 and receiving the label "feeding difficulties".
• The infants have a pediatric feeding disorder that prevent them from feeding normally by oral means.
• The infants need or have needed (enteral or parenteral) artificial nutrition.
• The infants are aged between 0 and 12 years at their first presentation.
• The infants are capable of developing normal feeding behavior.

Infants will be excluded from this study if they:

• Have no 6-months follow-up available.
• Parents refusal to enter a multi-disciplinary approach for the feeding problems of their children.

Since 2010, a structured multidisciplinary team was formed to evaluate the child medically, support its nutrition, teach, treat and educate the children and parents and guide them through the process to obtain a normal and independent feeding behavior. The multidisciplinary team must have special expertise regarding digestive and nutritional as well as sensory and oral motor problems in children requiring artificial nutrition. The team must at least consist of a pediatrician, a dietician with experience in artificial nutrition in children, a speech therapist and/or physical therapist and a psychologist or orthopedagogue. The team should also be able to rely on a nurse with experience in artificial nutrition, a social assistant and a secretary.