There are 2 studies that match your criteria.
Criteria: Study Type=Epidemiology,Freq Range=0 - 300 Hz (Static, ELF),Study Subtype=Hormone Changes

View This Study - Citation No: 4498
Title	THE INFLUENCE OF GEOMAGNETIC FIELD VARIATIONS ON THE PINEAL GLAND CIRCADIAN ACTIVITY
Reference	Adv Gerontol, Vol. 21, Pg. 382 - 385, 2008
Author(s)	Iashmanov V. A., Koshelevskii V. K.
PubMed UID	19432170
Project ID	2054
View This Study - Citation No: 4499
Title	MAGNETIC FIELDS AND SEASONALITY OF AFFECTIVE ILLNESS: IMPLICATIONS FOR THERAPY
Reference	Int J Neurosci, Vol. 58, Pg. 261 - 267, 1991
Author(s)	Sankyk R., Anninos P. A., Tsagas N.
PubMed UID	1365047
Project ID	2055