RT Journal Article SR Electronic T1 Long-Acting Parenteral Drug Formulations JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 106 OP 139 VO 35 IS 3 A1 Chien, Yie W. YR 1981 UL http://journal.pda.org/content/35/3/106.abstract AB