@article {Lichten:March 1997:0378-5122:151, author = "Lichten E.M.", author = "Lichten J.B.", author = "Whitty A.", author = "Pieper D.", title = "The confirmation of a biochemical marker for women's hormonal migraine: the depo-estradiol challenge test", journal = "Maturitas", volume = "26", year = "March 1997", abstract = "", pages = "151-151(1)", url = "http://www.ingentaconnect.com/content/els/03785122/1997/00000026/00000002/art88482" doi = "doi:10.1016/S0378-5122(97)88482-4" }