English English English English «ویکی‌پدیای انگلیسی» English English vitamin deficiency Avitaminosis English English English English English English English English English English deficiency Wikipedia Wikipedia Avitaminosis vitamin deficiency English English English English notable problems English Avitaminosis English English English Deficiency Wikipedia English Wikipedia English Avitaminosis vitamin deficiency English English Wikipedia English English English Wikipedia Avitaminosis English English English