Assertion: goiter | /r/CreatedBy | tumor
Facets:
Source sentences:
text: A goiter can be caused by a lack of iodine in the diet, a tumor or nodule on the gland, a thyroid disease, or, in rare cases, cancer.
text: A goiter can be caused by a lack of iodine in the diet, a tumor or nodule on the gland, a thyroid disease, or, in rare cases, cancer.