Which vitamin is an antioxidant

What is crystallographic data processing and structure determination? what are the physical infrastructures of x-ray crystallographic structural biology? who can tell me detailed information? any would be appreciated. in advance!

Anurse is teaching about a new prescription for infliximab to a client who has rheumatoid arthritis. which of the following information should the nurse include in the teaching? a. “you will receive a mantoux test before the initial medication dose.” b. “you might experience diarrhea during the first 2 weeks of treatment.” c. “you will receive the medication every week for 6 weeks.” d. “you should receive the intranasal influenza vaccine.”

The universal blood donor is: a. type a b. type b c. type o d. type ab