20. The provisions of this act shall not affect:
a. Physicians or members of other professions who, in their private practices perform bio-analytical laboratory tests in their own offices or laboratories for their own patients pursuant to licenses respectively granted to them according to law.
b. Nonprofit research institutions.
c. Bio-analytical laboratories of hospitals, licensed by the Department of Health, where the work is confined to regularly admitted patients or registered clinic patients of the hospital.
d. Bio-analytical laboratories operated by the United States Government, the Department of Health, or any county or municipality of the State.
e. Facilities at which the only testing that is conducted is point-of-care laboratory testing