There was a novelization of “The Fantastic Voyage” written with Dr. Isaac Asimov allowed to fix obvious plot holes in the movie. (He thought the idea of miniaturization was impossible physics wise.) He wrote his own idea for the concept later. Read more at:: https://en.wikipedia.org/wiki/Fantastic_Voyage
There was a novelization of “The Fantastic Voyage” written with Dr. Isaac Asimov allowed to fix obvious plot holes in the movie. (He thought the idea of miniaturization was impossible physics wise.) He wrote his own idea for the concept later. Read more at:: https://en.wikipedia.org/wiki/Fantastic_Voyage