After what number of sexual encounters with an infected person should someone seek treatment for an sti?

Why mature red blood cells has no nucleus

Genetically engineered human insulin is used to treat which disease?

Which of these gives the best indication that a health service is based on pseudoscience? a. the service is not controversial and is supervised by medical professionals. b. the service has been extensively researched,has a high success rate,and is expensive c. the service is inexpensive, is based on research, and has been around for a long time d. the service has not been researched and is expensive