1. Chelsea B Polis v Valley Electronics Ag, Valley Electronics Gmbh, Valley Electronics, Llc. 2022. https://trellis.law/case/36047/528434-2022/chelsea-b-polis-v-valley-electronics-ag-valley-electronics-gmbh-valley-electronics-llc.
2. Published analysis of contraceptive effectiveness of Daysy and DaysyView app is fatally flawed