TY  - JOUR
TI  - When was ventricular septal defect first defined?
AU  - Ulus, A.T.
AU  - Songur, M.
AU  - Kahya, E.
JO  - The Anatolian Journal of Cardiology
PY  - 2011
VL  - 11
SP  - 179
EP  - 179
DO  - 10.5152/akd.2011.041
ER  -