2720005 FSSM Food Security Survey Module 13 2720001 FSSM flexible stainless-steel mesh 2 2720002 FSSM fecal sludge and septage management 1 2720003 FSSM flexible skew-symmetric shape model 1 2720006 FSSM Frankfurt Scale of SM 1 2720004 FSSM fuzzy semantic similarity measure 1