title: Letter to the editor.
authors.forename: B M Golam
authors.initials: BM
authors.lastname: Kibria
mesh_terms: D016010:Binomial Distribution; D004245:DMF Index; D006801:Humans; D015233:Models, Statistical; D009520:New Zealand / Q000453:epidemiology; D016012:Poisson Distribution; D012044:Regression Analysis