TY - RPRT TI - Polymeric anticancer drugs with pH-controlled activation. AU - Karel Ulbrich AU - VladimĂ­r Subr PY - 2004 DO - 10.1016/j.addr.2003.10.040 UR - https://pubmed.ncbi.nlm.nih.gov/15066758/ ID - 15066758 ER -