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by amluto
848 days ago
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In the US, most clinics don’t make a point of showing the patient what the product is. They screen the patient (usually a skin test), prescribe either a single antigen formulation, a combination of antigens in different vials, or they mix up a custom vial for the patient, and they keep it in a fridge in the clinic. The antigens come from whatever provider the clinic buys them from. |
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