00363nas a2200133   4500000000100000008004100001100002200042700001900064700001000083245011000093300001300203490000700216050000600223       2009                            d1 aHeritier Stephane1 aHudson Malcolm1 aLo S.00aSaddlepoint Approximation for Semi-Markov Processes with application to a cardiovascular randomized study  a683-98. 0 v53  aY