Comments on: Does Zika Virus Cause Microcephaly – Applying the Bradford Hill Viewpoints http://currents.plos.org/outbreaks/article/zika-virus-and-microcephaly-applying-the-bradford-hill-criteria-for-causation/ Fri, 21 Apr 2017 16:40:02 +0000 hourly 1 https://wordpress.org/?v=4.5.3