RT Journal Article SR Electronic T1 Drug Shortages, Today and Tomorrow—An Industry Perspective JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 557 OP 561 DO 10.5731/pdajpst.2015.01066 VO 69 IS 4 A1 Sifferlen, Sandra Cha YR 2015 UL http://journal.pda.org/content/69/4/557.abstract AB