Lf	lactoferrin
FeLf	iron-lactoferrin complex
MDQ	Moos menstrual distress questionnaire
NSAID	nonsteroidal anti-inflammatory drug
VAS	visual analogue scale
VRS	verbal rating scale
HFA	heart rate variability index of high-frequency area
LFA	heart rate variability index of low-frequency area
H%	power value of the high-frequency relative to the total power area
L%	power value of the low-frequency relative to the total power area