AI stethoscope vs. Doctor's ear: which finds more heart problems in kids?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria (Schools): * The school is of the type: kindergarten, primary school, junior high school, or senior high school. * The school has medical screening facilities and conditions that can support AI-assisted screening. * The area where the school is located has at least one primary healthcare institution willing to participate in this trial. * The school's management and teaching staff are willing to participate in the study and can cooperate to complete the related screening and data collection work. Exclusion Criteria (Schools): * More than half of the students in the school refuse to participate in the trial. * Schools that are unable to complete the study due to severe limitations in geographical location and transportation conditions. * Schools lacking medical screening facilities and conditions necessary for the implementation of screening. * Areas where there are no primary healthcare institutions willing to participate in this trial. * Schools whose management and teaching staff refuse to participate in the study or are unable to cooperate in completing the related screening and data collection work. Inclusion Criteria (Individuals): * Children aged between 0 and 18 years, regardless of gender. * Children who agree to undergo echocardiography to determine the presence of congenital heart disease. * Individuals who voluntarily participate in this study and sign the informed consent form. Exclusion Criteria (Individuals): * Individuals over the age of 18. * Children who are unable to complete echocardiography or do not cooperate with auscultation. * Participants who are unable to provide informed consent or are unwilling to comply with the study requirements to provide medical data for further analysis and research. * Participants who have received interventional or surgical treatment for CHD.