Search for Neutral Higgs Bosons in Two Higgs Field Doublets Models             
  
Searches have been made for the neutral Higgs bosons predicted by              
models with two Higgs field doublets (2HDM).  Type II 2HDM models              
are considered, and e+e- collision data from the OPAL detector at              
LEP with centre-of-mass energies upto 189 GeV have been used.                  
The results of searches for                                                    
SM or MSSM Higgs bosons production have been combined                          
with the results from searches which extend the sensitivity to                 
general hadronic decays of the Higgs bosons.                                   
The analyses exclude large areas of the parameter space of the 2HDM.           
  
 Parallel session :11                  
 Plenary  session :7a