filter out null values in infrastructuresearch
filter out null values in infrastructuresearch

sgarlick987/deck,sgarlick987/deck,icfantv/deck,kenzanlabs/deck,sgarlick987/deck,kenzanlabs/deck,zanthrash/deck-old,zanthrash/deck-1,duftler/deck,sgarlick987/deck,HaishiBai/deck,HaishiBai/deck,zanthrash/deck-1,ajordens/deck,ajordens/deck,duftler/deck,kenzanlabs/deck,icfantv/deck,spinnaker/deck,zanthrash/deck-1,spinnaker/deck,icfantv/deck,icfantv/deck,duftler/deck,zanthrash/deck-old,HaishiBai/deck,spinnaker/deck,spinnaker/deck,ajordens/deck,ajordens/deck,duftler/deck