Penicillin.parenteral:Susc:Pt:Isolate:OrdQn
penicillin.parenteral:susc:pt:isolate:ordqn
Penicillin.parenteral:Susceptibility:To identify measures at a point in time:Isolate:Quantitative or Ordinal
penicillin.parenteral:susceptibility:to identify measures at a point in time:isolate:quantitative or ordinal