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Powder X-ray diffractograms of NDP, physical mixture, SNEDDS, and solid SNEDDS formulations containing Cremophor® RH40 and Span® 80. NDP nifedipine, A Aerosil® 200, R Aerosil® R972, PMA physical mixture of NDP and Aerosil® 200, PMR physical mixture of NDP and Aerosil® R972, A20 solid SNEDDS containing 20% Aerosil® 200, A50 solid SNEDDS containing 50% Aerosil® 200, R20 solid SNEDDS containing 20% Aerosil® R972, R50 solid SNEDDS containing 50% Aerosil® R972
