000 00443nam a2200169Ia 4500
001 21262
008 140408s9999 xx 000 0 und d
020 _a0-340-76143-1
040 _cPK-LaUMT
082 _a 615.1901
_bMAT-I
100 _aJ. N. S. Matthews
245 3 _aAn introduction to randomized controlled clinical trials
_cJ. N. S. Matthews
260 _aLondon,UK:
_bAronld,
_c2000
300 _a189 p.
546 _aEN
942 _cBK
999 _c21576
_d21576