Junichi Watanabe (1933-2014) was a medical doctor/surgeon before becoming a full-time writer. His work can be divided into two groups: commercial fiction (often with pretty racy details) and fiction that utilizes his medical knowledge.
This novel Hana-Uzumi (Buried Blossom), is a biography of Japan's first female doctor Ginko Ogino. Here are some facts about her: She was married at age 16, got gonorrhea from her husband, was divorced at age 19 because of the infertility caused by this STD. This motivated her to study medicine, but there was no higher-education for women in the late 19th century Japan. Somehow she managed the situation and got licensed in 1885. She later remarried. This marriage, however, was a mixed blessing for her (according to Watanabe). While the relationship was fine, it disrupted her ongoing education as a doctor -- medicine was improving fast, and she couldn't keep up with it. This is why Watanabe named this story as such.
I like authors with distinct background. They have so much to offer.