F F,Fr FA Fab Facb FACD FACOG FACP FACS FACSM FAD FADF FAE fam doc FAN FAP FAT FB FBP FBS FC FCA fCi FD FD50 F&D FDA FDE FDG FDP FDS Fe FEC FECG FEF FEKG fem FEP, FEPP FER FES FET FETS FEV FEV1 FF FFA FFDW FFM FFP FFWW FG FGF FGM FH FHR FHT FI FIA FID FIF fig FIGE FIGLU FIGO FiO2 fist FITC FJN fl. FLA FLASH filt flor fl.oz. FLP FLSA FLT Fl up FM FME FMG FMN FMR FMS FN FNTC FO FOAVF FOD f.p. FP FPC FPM FPP fps Fr FR F&R frag FRC FRF frict FROM FRP FRS FS FSD FSF FSH FSH/LH-RH FSH-RF FSH-RH FSPs,FSP FSR FSW ft. FT FTA FTA-AB, FTA-ABS FTLB FTND FU FUDR, FUdR FUO FUR FV FVC FVL FW FWR Fx,fx FYI FZ