00481nas a2200157   4500000000100000000000100001008004100002100001700043700001900060700001600079700001500095245012800110856006700238300001200305490000600317       1992                            d1 aHershel Jick1 aBarbara Terris1 aLaura Derby1 aSusan Jick00aFurther validation of information recorded on a general practitioner based computerized data resource in the united kingdom  uhttps://onlinelibrary.wiley.com/doi/abs/10.1002/pds.2630010607  a347-3490 v1