BibTex format
@article{Thayyil-Sudhan:1998:10.1080/02724936.1998.11747967,
author = {Thayyil-Sudhan, S and Singh, M and Broor, S and Xess, I and Paul, VK and Deorari, AK},
doi = {10.1080/02724936.1998.11747967},
journal = {ANNALS OF TROPICAL PAEDIATRICS},
pages = {321--324},
title = {Is zero dose oral polio vaccine effective in preterm babies?},
url = {http://dx.doi.org/10.1080/02724936.1998.11747967},
volume = {18},
year = {1998}
}