 - due for WCC visits in the study period Recruitment: The appointment schedules and panels of participating FHT physicians will be reviewed to identify eligible children due or scheduled for a visit. The potential participants will be contacted by phone 1-4 weeks prior to their visit, by the research assistant, and have the project explained to them with an invitation to participate or continue with their usual care. If a parent agrees, verbal informed consent over the phone will be obtained. Consenting patients will be offered the nurse intervention on arrival for their scheduled appointment, with the option of seeing their family physician afterwards. They will sign an informed consent form prior to the visit, which will also ask for interest in participating in follow-up interviews. 