EkbomKWaldenlindE.Cluster headache in women: evidence of hypofertility (?) Headaches in relation to menstruation and pregnancy. Cephalalgia1981; 1:167–74.
2.
EkbomK, Olivarius B de Fine. Chronic migrainous neuralgia - diagnostic and therapeutic aspects. Headache1971; 11:97–101.
3.
Beck-FriisJvon RosenDKjellmanB.FLjunggrenJ-GWetterbergL.Melatonin in relation to body measures, sex, age, season and the use of drugs in patients with major affective disorders and healthy subjects. Psychoendocrinol.1984; 9:261–277.
4.
WaldenlindEEkbomKFribergYSääfJWetterbergL.Decreased nocturnal serum melatonin levels during active cluster headache periods. Opuscula Medica1984; 29:109–112.
5.
ChazotGClaustratBBrunJJordanDSassolasGSchottB.A chronobiological study of melatonin, Cortisol growth hormone and prolactin secretion in cluster headache. Cephalalgia1984; 4:213–220.
6.
PolleriANappiGMurialdoGBonoGMartignoniESavoldiF.Changes in the 24-hour prolactin pattern in cluster headache. Cephalalgia1982; 2:1–7.