Siregar, Syawitri, Ida Mardiati, and Arwin Akib. 1999. “Clinical Features and Specific LgE in Babies and Children With Cow’s Milk Allergy”. Paediatrica Indonesiana 39 (3-4), 83-7. https://doi.org/10.14238/pi39.3-4.1999.83-7.