In 1930, shortly after completing his internship, he began working in public health and was commissioned in 1934 in the United States Public Health Service and specialized in the epidemiology of sexually transmitted diseases.
He began working in public health. This was in 1930. He was commissioned in 1934 in the United States Public Health Service in the epidemiology of sexually transmitted diseases. This was in 1930. He was commissioned in 1934 in specialized in the epidemiology of sexually transmitted diseases. This was in 1930. He was completing his internship. This was in 1930.