'In 1844 dentist Horace Wells used this anesthetic on himself to pull a tooth; he then began using it on patients'
nitrous oxide
MEDICINE: In 1844 dentist Horace Wells used this anesthetic on himself to pull a tooth; he then began using it on patients
In 1844 dentist Horace Wells used this anesthetic on himself to pull a tooth; he then began using it on patients
In 1844 dentist Horace Wells used this anesthetic on himself to pull a tooth; he then began using it on patients
MEDICINE
nitrous oxide
MEDICINE