Max Brand 
Dr. Kildare Takes Charge [EPUB ebook] 

The boy was nineteen; the trembling girl at his side was younger. Their tightly clasped hands told Kildare all he needed to know about their urgent love for each other. Their parents said they were too young to marry, but Dr Kildare knew they were old enough to think of death—unless he could find some way to stop them.

Dr Kildare Takes Charge was the basis for the fifth MGM movie (Dr Kildare Goes Home, 1940) made in the Kildare series.