'internship period' is a perfectly acceptable and usable phrase in written English.
You can use it to refer to the amount of time someone is employed as an intern in a company or organization. For example, "John worked as an intern for three months during his internship period."
By the time my internship period came to a finish I couldn't take another round of working for gratitude alone.
The document viewer included three other e-mails dating to his internship period in which Mr. Bryan was referred to as an "official".
This study aims to gauge the level of business acumen skills the students demonstrated during their seven month internship period.
All of the interns in the class of 2003 participated in the training during their internal medicine internship period.
Other students enrol in primarily school-based training programs, which may contain a temporary internship period (Deissinger 2007).
Those admitted to these programs can expect to dive head first into an intense one-year program that includes an internship period.
For example the Dutch and German education systems are usually classified as highly stratified, providing occupation-specific vocational training through a combination of training in school and intensive internship periods (Mueller and Gangl, 2003).
In contrast, the French system is classified as less stratified, with different forms of vocational training encompassing both apprenticeship programs and school-based training with modest internship periods leading to the BEP diploma (Mueller and Gangl, 2003).
Throughout the world, new medical graduates are required to undergo internship, a period of medical apprenticeship under the supervision of clinical consultants.
Internship is a period of medical apprenticeship under the supervision of senior doctors, especially the consultants.
Internship is a period of medical apprenticeship under the supervision of a consultant.
