The WHO Clinical Staging System for HIV/AIDS allows physicians in resource-limited settings to make clinical decisions based on patient clinical features instead of laboratory tests.
There are U.S. regulations on drug sales by Internet pharmacies; there is a need to make life-sustaining drugs available at prices more people can afford.
It is unconstitutional--and unethical--for physicians to participate in evidence-gathering against pregnant women suspected of being addicted to illegal substances without informing them of their constitutional rights or gaining their informed consent.