Ethical approval and consent to participate
premenstrual syndrome
PREMENSTRUAL SYNDROME, RECRUITMENT
The Ethics Committee of Shahid Sadoughi University of Medical Sciences and the registration id IRCT20191231045967N1 prospectively11/02/2020 of Iranian Registry of Clinical Trials (IRCT | Survey the effect of vitamin D3 tablet intake, positivism group consulting with changing in life style in the treatment of premenstrual syndrome in women) approved study protocol (IR.SSU.REC.1398.157). We followed all the ethical principles of the World Medical Association Declaration of Helsinki for medical research involving human subjects. We obtained oral and written informed consent from all study participants before their recruitment.