00472nas a2200181   4500000000100000000000100001008004100002100001200043700001000055700001600065700001400081700001200095700001400107245013800121300001100259490000600270022001400276       2011                            d1 aY. Chen1 aJ. Wu1 aI. Haschler1 aA. Majeed1 aT. Chen1 aT. Wetter00aAcademic impact of a public electronic health database: bibliometric analysis of studies using the general practice research database  ae214040 v6  a1932-6203