Considerastudyinwhichacityhealthofficialisconcernedwiththeincidence ofchildhoodmeaslesinparentsofchild-bearingageinthecity.Foreachcouple she wouldlike to knowhowlikelyit is that either the mother or father or both have had childhood measles.
Considerastudyinwhichacityhealthofficialisconcernedwiththeincidence ofchildhoodmeaslesinparentsofchild-bearingageinthecity.Foreachcouple she wouldlike to knowhowlikelyit is that either the mother or father or both have had childhood measles.