children take the roles of physician or patient or nurse and pretend they are at the physician's office | English physiologist who, with Andrew Huxley, discovered the role of potassium and sodium atoms in the transmission of the nerve impulse (1914-1998) |
a licensed medical practitioner | English chemist (born in Egypt) who used crystallography to study the structure of organic compounds (1910-1994) |
a person who holds Ph.D. degree (or the equivalent) from an academic institution | English physician who first described Hodgkin's disease (1798-1866) |