Seminars in Perinatology
Seminars in Perinatology > 2007 > 31 > 6 > 354-362
Seminars in Perinatology > 2007 > 31 > 6 > 339-347
Seminars in Perinatology > 2007 > 31 > 6 > 332-338
Seminars in Perinatology > 2007 > 31 > 6 > 348-353
Seminars in Perinatology > 2007 > 31 > 6 > 363-371
Seminars in Perinatology > 2007 > 31 > 6 > 372-377