canary in a coal mine – metaphor for US infant mortality by Rosalyn Williams | Feb 1, 2018 | 0 comments The high US infant mortality rates are like a canary in a coal mine. Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Notify me of new posts by email.
