@techreport{NBERw13826,
 title = "Evidence From Maternity Leave Expansions of the Impact of Maternal Care on Early Child Development",
 author = "Michael Baker and Kevin Milligan",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "13826",
 year = "2008",
 month = "February",
 URL = "http://www.nber.org/papers/w13826",
}