000 00280nam a2200109Ia 4500
008 220514s9999||||xx |||||||||||||| ||und||
050 _aW 89.A7
100 _aArmstrong, David
245 0 _aResearch methods for general practitioners
650 _aresearch, methods
942 _2lcc
_cBK
999 _c3022
_d3022