@article {:2002:0730-7659:152,
title = "CALENDAR",
journal = "Birth",
parent_itemid = "infobike://bsc/bir",
publishercode ="bp",
year = "2002",
volume = "29",
number = "2",
publication date ="2002-06-01T00:00:00",
pages = "152-152",
itemtype = "ARTICLE",
issn = "0730-7659",
eissn = "1523-536X",
url = "https://www.ingentaconnect.com/content/bsc/bir/2002/00000029/00000002/art00016",
doi = "doi:10.1046/j.1523-536X.2002.00179.x",
abstract = "",
}