Explicit dependence in comments, remove unused modules

loadPatient.py

@@ -1,12 +1,5 @@
-import slicer
-import loadDicom
-import re
-import slicerNetwork
-import os
-import subprocess
-import importDicom
-
-#get access to importDicom and loadDicom at runtime
+#load all relevant patient data
+#requires labkeyInterface through labkeyDatabrowser db, labkeyFileBrowser fb, fbDMR, importDicom iDicom and loadDicom lDicom
 
        
 def getOICode(db, project, label):