1501241 RAN ranitidine 55 1533546 RNT ranitidine 15 3351698 RNTD ranitidine 10 3319103 RANT ranitidine 6 399644 RT ranitidine 6 376390 RA ranitidine 5 390179 Rn ranitidine 4 1532603 RND ranitidine 1 1548917 RTD ranitidine 1