Phospholipid distribution of infected erythrocyte (IRBC) ghosts and P falciparum trophozoite membranes compared with control erythrocytes (NRBCs). PL was extracted, purified, and analyzed by HPTLC separation and densitometric analysis as described in “Materials and methods.” Results represent the percentage of total PLs and are the mean (± SD) of 3 determinations made in duplicate. IRBCs were compared with trophozoites (unpaired t test, ^*P < .01) and young NRBCs (paired t test, ○P < .01).