
Keywords: ثبت نام پزشکی تولد نروژ; ASQ; Ages and Stages Communication scale; DHA; docosahexaenoic acid; EPA; eicosapentaenoic acid; FFQ; food frequency questionnaire; Hg; total mercury; KJ; kilojoule; Language 20; twenty statements about language-related difficulties; MBRN; Medical Birth R