Here below you have the reference of a very very very old article ... but who knows. It could be of help.
You should contact Dr. Olivier Pradier (who is registered on RG) and ask him for the pdf reprint (I have it in hard copy, but I do not retrieve it ...).
Best regards
Robert
Am J Hematol. 1995 Jul;49(3):183-93.
Comparative study of multidrug resistance evaluated by means of the quantitative immunohistochemical detection of P-glycoprotein and the functional release of rhodamine 123.
Delville JP1, Pradier O, Pauwels O, Van Onderbergen A, Kiss R, Feremans W, Capel P.
thank you for providing the pdf on Flow cytometric Protocols (whole book cf: http://link.springer.com/book/10.1385/1592597734, 2004) which can be accessed easily as the full pdf.
Unfortunately the 2nd link you provided (www.microbiologyresearch.org.... ends up at:http://www.microbiologyresearch.org/error/authentication;jsessionid=3f5sj95m9h0e6.x-sgm-live-03 with the following automated reply:
So, please, if possible: share the / a title or content of the URL proposed originally in clear text to the community. Thank you in advance, cordially yours, WM