\n @ARTICLE{Verdurmen2016a,
\n author = {Verdurmen, K.M.J. AND Lempersz, C. AND Vullings, R. AND Schroer, C. AND Delhaas, T. AND van Laar, J.O.E.H. AND Oei, S.G.},
\n title = {Normal ranges for fetal electrocardiogram values for the healthy fetus of 18-24 weeks of gestation: a prospective chort study},
\n abstract = {},
\n keywords = {},
\n pages = {},
\n bookTitle = {BMC Pregnancy Childbirth},
\n volume = {16},
year = {2016},
month = {Aug.}
}