What is the percentage of newborns who have developed a congenital heart disease due to environmental risk factors like drug ingestion and maternal alcoholism?
A. 5% to 10%
B. 7% to 9%
C. 2% to 4%
D. 10% to 20%
Answer:A
What is the percentage of newborns who have developed a congenital heart disease due to environmental risk factors like drug ingestion and maternal alcoholism?
A. 5% to 10% B. 7% to 9% C. 2% to 4% D. 10% to 20%