st: finding the last date among multiple date variables

["Jonathan Kaplan" <jonathankaplan2@hotmail.com>]

Sorry for this novice question ,but been searching by findit, ssc and 
statalist without luck(using Stata7SE):

I got data on HIV Non Hodgkin lymphoma patients with multiple date 
variables: I would like to generate a new datevariable which keeps the date 
of the time-variable, which has the last date recorded for each 
patient.There are several missing date values within each variable
e.g:the timevariables which could be the last followup are deaddat, 
opddat,hospdat,hivrnadat,statlymdat,lostdat

Any ideas for a simple solution?

Jonathan



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