ref:
https://upload.wikimedia.org/wikipedia/commons/1/10/Antibiotics_coverage_diagram.jpg
https://www.wikiwand.com/en/Broad-spectrum_antibiotic
https://www.grepmed.com/images/6389/antibiotics-spectrum-susceptibility-antibiogram-bacterial
https://www.facebook.com/medicaltextbook/photos/a.200997793639636/591003064639105/?type=3&theater
https://twitter.com/UtahIMCMRs/status/1156655217091346432/photo/1
https://twitter.com/NykomaHamilton/status/603307741646430208/photo/1
https://www.grepmed.com/images/2504/susceptibilities-susceptibility-criticalcare-microbiology-pharmacology
