"Any anomaly, functional or structural, that presents in infancy or later in life and is caused by events preceding birth, whether inherited, or acquired." (More)

Any medication, chemical, infectious disease, or environmental agent that might interfere with the normal development of a fetus and result in the loss of a pregnancy, a birth defect or a pregnancy complication. (More)

An ongoing systematic collection, analysis and interpretation of birth defects (BD) data needed for the planning, implementation and evaluation of public health practice.

"A communication process which deals with the human problems associated with the occurrence, or risk of occurrence, of a genetic disorder in a family." (More)