FDA regulations provide broader access to unapproved drugs.
Shulman
S R
SR
Center For The Study of Drug Development, Tufts University, Boston, Massachusetts 02111.
Raiford
D S
DS
D015507:Drugs, Investigational / Q000627:therapeutic use*; D006801:Humans; D007880:Legislation, Drug / Q000592:standards* / Q000639:trends; D014481:United States; D014486:United States Food and Drug Administration
D015507:Drugs, Investigational