An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Tan PC, Suguna S, Vallikkannu N, Hassan J.Tan PC, et al. Among authors: vallikkannu n.Aust N Z J Obstet Gynaecol. 2006 Dec;46(6):505-9. doi: 10.1111/j.1479-828X.2006.00650.x.Aust N Z J Obstet Gynaecol. 2006.PMID: 17116055
Tan PC, Suguna S, Vallikkannu N, Hassan J.Tan PC, et al. Among authors: vallikkannu n.Singapore Med J. 2008 Mar;49(3):193-8.Singapore Med J. 2008.PMID: 18362999Free article.
Vallikkannu N, Nadzratulaiman WN, Omar SZ, Si Lay K, Tan PC.Vallikkannu N, et al.BMC Pregnancy Childbirth. 2014 Jan 28;14:49. doi: 10.1186/1471-2393-14-49.BMC Pregnancy Childbirth. 2014.PMID: 24468078Free PMC article.Clinical Trial.
Vallikkannu N, Lam WK, Omar SZ, Tan PC.Vallikkannu N, et al.BJOG. 2017 Jul;124(8):1274-1283. doi: 10.1111/1471-0528.14175. Epub 2016 Jun 27.BJOG. 2017.PMID: 27348806
Sargunam PN, Bak LLM, Tan PC, Vallikkannu N, Noor Azmi MA, Zaidi SN, Win ST, Omar SZ.Sargunam PN, et al. Among authors: vallikkannu n.BMC Pregnancy Childbirth. 2019 Dec 11;19(1):493. doi: 10.1186/s12884-019-2602-2.BMC Pregnancy Childbirth. 2019.PMID: 31829138Free PMC article.Clinical Trial.