Combined anti-angiogenic therapy targeting PDGF and VEGF receptors lowers the interstitial fluid pressure in a murine experimental carcinoma. - Kłosowska-Wardega A; Hasumi Y; Burmakin M; Ahgren A; Stuhr L; Moen I; Reed RK; Rubin K; Hellberg C; Heldin CH (PloS one, 2009)