Add spaces: In1828CrellelefttheserviceofthePrussianMinistryoftheInteriorandjoinedthePrussianMinistryofEducationandCulturalAffairs.

Answer: In 1828 Crelle left the service of the Prussian Ministry of the Interior and joined the Prussian Ministry of Education and Cultural Affairs.

Add spaces: Dr.DentistandtheExplodingTeeth

Answer: Dr. Dentist and the Exploding Teeth

Add spaces: NewFDAE-CigaretteRegulations:TheProsandCons

Answer:
New FDA E-Cigarette Regulations: The Pros and Cons