I'm not exactly sure what your asking but for animal diseases it would be a veterinarian
Answer:]
The Salem witch trials occurred in colonial Massachusetts between 1692 and 1693. More than 200 people were accused of practicing witchcraft—the Devil's magic—and 20 were executed. Eventually, the colony admitted the trials were a mistake and compensated the families of those convicted
Answer:
d. In the absence of a date of publication, write n.d. to indicate no date was provided.
Explanation:
When you need to use APA format, the procedure for citing inside of a text consists of including the author and the date of the information cited. To be clear, this implies including both the author's last name and the year of publication in the text to later place full reference in the final list of the document. If such year is not available, you should proceed as stated above.