Note 5 — Loss per share

The dilutive effect of 93,106,607 and 103,848,778 stock options outstanding as of March 31, 2020 and 2019 respectively have been excluded from the diluted loss per share calculation for the three months ended March 31, 2020 and 2019 respectively, because they would have an antidilutive effect on the loss per share for the period.