Singh Ospina, N., Maraka, S., Espinosa DeYcaza, A., O'Keeffe, D., Brito, J. P., Gionfriddo, M. R., Castro, M. R., Morris, J. C., Erwin, P., Montori, V. M.:Diagnostic accuracy of thyroid nodule growth to predict malignancy in thyroid nodules with benign cytology: systematic review and meta-analysis