000 00462cam a2200181 4500
001 0781722187
008 031010t2001 xxu||||| |||| 00| 0 eng d
020 _a0781722187
100 _aHulley, S
245 0 _aDesigning clinical research (2nd ed)
250 _a2nd
690 _aRheumatism-Rehabilitation
690 _aEvidence Based Medicine
_913112
690 _aMedicine - Respiratory
700 _aCummings, S
700 _aBrowner, W
999 _c83233
_d83233