[1] Univ Kansas, Dept Pharmaceut Chem, Macromol & Vaccine Stabilizat Ctr, Lawrence, KS 66047 USA
[2] Bill & Melinda Gates Fdn, Seattle, WA 98109 USA
[3] Univ Washington, Dept Pharmaceut, Seattle, WA 98195 USA
[4] Univ Washington, Dept Bioengn, Seattle, WA 98195 USA
[5] Osaka Univ, Grad Sch Engn, Dept Biotechnol, Suita, Osaka 5650871, Japan
[6] Univ Munich, Dept Pharm Pharmaceut Technol & Biopharmaceut, D-81377 Munich, Germany
[7] Univ Colorado, Dept Pharmaceut Sci, Ctr Pharmaceut Biotechnol, Aurora, CO 80045 USA