When a patient is admitted and satisfies the inclusion criteria, one of the investigators or delegate will approach the parent(s). Patient identification will be done by admitting residents or the nurse practitioners. Parents will be approached by the residents or the nurse practitioners while the signature of the consent form in case of agreement will be obtained by one of the investigators who are not responsible about the care of the infant. Using language understandable to the parent(s), the study protocol will be described in detail outlining the procedure and describing any potential risks. All parents will be specifically informed that a decision not to participate in the research study will in no way compromise their child's care. If the parent(s) agree that their child participate in the study, written informed consent will be obtained. A copy of the consent form will be kept with the investigators.