There are 4 studies that match your criteria.
Criteria: Study Type=In Vivo,Freq Range=0 - 300 Hz (Static, ELF),Study Subtype=Hormone Changes

View This Study - Citation No: 3585
Title	EXPOSURE OF FEMALE RATS TO A 100 MICRO TESLA 50 Hz MAGNETIC FIELD DOES NOT INDUCE CONSISTENT CHANGES IN NOCTURNAL LEVELS OF MELATONIN
Reference	Radiation Research, Vol. 150, Pg. 557 - 567, 1998
Author(s)	Loscher W., Mevissen M., Lerchl A.
PubMed UID	9806598
Project ID	2007
View This Study - Citation No: 4384
Title	THE EFFECTS OF PULSING MAGNETIC FIELDS ON PINEAL MELATONIN SYNTHESIS IN A TELEOST FISH (BROOK TROUT, SALVELINUS FONTINALIS).
Reference	Neurosci Lett., Vol. 256, Pg. 171 - 173, 1998
Author(s)	Lerchl A., Zachmann A., Ali M. A., Reiter R. J.
PubMed UID	9855367
Project ID	2007
View This Study - Citation No: 4385
Title	GROWTH RETARDATION, TESTICULAR STIMULATION, AND INCREASED MELATONIN SYNTHESIS BY WEAK MAGNETIC FIELDS (50 Hz) IN DJUNGARIAN HAMSTERS, PHODOPUS SUNGORUS
Reference	Biochem Biophys Res Commun, Vol. 234, Pg. 707 - 711, 1997
Author(s)	Niehaus M., Bruggemeyer H., Behre H. M., Lerchl A.
PubMed UID	9175780
Project ID	2007
View This Study - Citation No: 4560
Title	COMPARING PERFORMANCES OF LOGISTIC REGRESSION AND NEURAL NETWORKS FOR PREDICTING MELATONIN EXCRETION PATTERNS IN THE RAT EXPOSED TO ELF MAGNETIC FIELDS.
Reference	Bioelectromagnetics., Vol. 31, Pg. 164 - 171, 2010
Author(s)	Jahandideh S., Abdolmaleki P., Movahedi M. M.
PubMed UID	19771546
Project ID	2084