Index: firmware/App/Controllers/PresOccl.h
===================================================================
diff -u -rc9df9f42e294adae397a57bf83c2a67fa831b164 -rb87b0135945e60e11688b7f2002839023f30b588
--- firmware/App/Controllers/PresOccl.h	(.../PresOccl.h)	(revision c9df9f42e294adae397a57bf83c2a67fa831b164)
+++ firmware/App/Controllers/PresOccl.h	(.../PresOccl.h)	(revision b87b0135945e60e11688b7f2002839023f30b588)
@@ -51,11 +51,11 @@
 /// Payload record structure for the pressure & occlusions data message.
 typedef struct
 {
-    F32 arterialPressure;
-    F32 venousPressure;
-    U32 bldPumpOcclusion;
-    U32 diPumpOcclusion;
-    U32 doPumpOcclusion;
+    F32 arterialPressure;                   ///< Latest arterial pressure (mmHg)
+    F32 venousPressure;                     ///< Latest venous pressure (mmHg)
+    U32 bldPumpOcclusion;                   ///< Latest BP occlusion (no units)
+    U32 diPumpOcclusion;                    ///< Latest DPi occlusion (no units)
+    U32 doPumpOcclusion;                    ///< Latest DPo occlusion (no units)
 } PRESSURE_OCCLUSION_DATA_T;
 
 // ********** public function prototypes **********
Index: firmware/App/Modes/Dialysis.c
===================================================================
diff -u -r5aed859fcb5f3874fe5ca6dde0d2d99fe7d7c26e -rb87b0135945e60e11688b7f2002839023f30b588
--- firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision 5aed859fcb5f3874fe5ca6dde0d2d99fe7d7c26e)
+++ firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision b87b0135945e60e11688b7f2002839023f30b588)
@@ -15,8 +15,6 @@
 *
 ***************************************************************************/
 
-#include <math.h>
-
 #include "AirTrap.h"
 #include "BloodFlow.h"
 #include "Buttons.h"