Master F-13 User Manual page 49

（6） People who are using artificial pacemaker to implant medical electrical
instruments into the body.
（7） People who have malignance.
（8） People who suffer disturbance of blood circulation like thrombosis or
serious dynamic fatty tumor, acute still fatty tumor etc., or all kinds of
skin infections.
（9） People who have perceived barriers caused by highly peripheral
circulation obstacles that are caused by diabetes, etc.
（10）People who have skin injuries.
（11）People who have a high fever (less than 38°) caused by illness, etc.
（12）People who have spine abnormalities or spine bending.
（13）People who are in pregnancy or may be in pregnancy or who are in their
period.
（14）People who have abnormalities in the body and need rest.
（15）People whose health is obviously poor.
（16）People who aim to recover.
（17）In addition to the above cases, people who have specially feel
abnormalities in their body.
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