CBMRT and Null Hypothesis BMTS US 2018 Presentation.pptx PETTYSANDRA 2019 Presentation by CEO of CBMRT, Dr Sandra Petty at BMTS US 2018 describing various biases inherent in biomedical research practices which make publishing negative/inconclusive/replicative results more difficult. Outlines CBMRT's Null Hypothesis initiative; a special edition journal supplement produced in partnership with leading medical journals as a place for such results to be published.