TY - RPRT TI - Pheophorbide a is a specific probe for ABCG2 function and inhibition. AU - Robert W Robey AU - Kenneth Steadman AU - Orsolya Polgar AU - Kuniaki Morisaki AU - Margaret Blayney AU - Prakash Mistry AU - Susan E Bates PY - 2004 DO - 10.1158/0008-5472.can-03-3298 UR - https://pubmed.ncbi.nlm.nih.gov/14973080/ ID - 14973080 ER -