| Summary of Intangible Assets | Intangible assets at June
30, 2020 and December 31, 2019 consisted of the following:   
    |  |  | June 30, 2020 |  |  | December 31, 2019 |  |  
    | Gross intangible assets |  | $ | 11,059,429 |  |  | $ | 11,059,429 |  |  
    | Less: accumulated amortization |  |  | (1,814,639 | ) |  |  | (1,416,975 | ) |  
    | Total intangible assets, net |  | $ | 9,244,790 |  |  | $ | 9,642,454 |  |  | Our intangible assets
consist of the following at December 31, 2019:   
    |  |  | License Rights |  |  | Software |  |  | December 31, |  |  
    |  |  | to PCS499 |  |  | License |  |  | 2019 |  |  
    |  |  |  |  |  |  |  |  |  |  |  
    | Gross intangible assets |  | $ | 11,038,929 |  |  | $ | 20,500 |  |  | $ | 11,059,429 |  |  
    | Less: accumulated amortization |  |  | (1,405,301 | ) |  |  | (11,674 | ) |  |  | (1,416,975 | ) |  
    | Total intangible assets, net |  | $ | 9,633,628 |  |  | $ | 8,826 |  |  | $ | 9,642,454 |  |    Our intangible assets
consist of the following at December 31, 2018:   
    |  |  | License Rights |  |  | Software |  |  | December 31, |  |  
    |  |  | to PCS499 |  |  | License |  |  | 2018 |  |  
    |  |  |  |  |  |  |  |  |  |  |  
    | Gross intangible assets |  | $ | 11,038,929 |  |  | $ | 20,500 |  |  | $ | 11,059,429 |  |  
    | Less: accumulated amortization |  |  | (616,807 | ) |  |  | (4,840 | ) |  |  | (621,647 | ) |  
    | Total intangible assets, net |  | $ | 10,422,122 |  |  | $ | 15,660 |  |  | $ | 10,437,782 |  |  |