Lally Hanna Luke; Anandhi D; Shiva Kumar K; Valli G; Revathi K; Binoy Varghese Cheriyan. Assessment of Serum Vitamin D, Folic Acid and Vitamin B12 in Congenital Heart Disease Patients in a Teritary Hospital. Int. J. Res. Pharm. Sci. 2021, 12, 844-848.