The Use of Neuromuscular Facilitation System is an eBook in Deus Ex: Human Revolution. It can be found on Tong Si Hung's desk inside The Hive nightclub. Win the conversation with Tong while he is posing as a bartender on your first visit to the Hive (do not sneak in via vent access or you will not be able to enter Tong's office) to get access to Tong’s office.