“Memorial Tribute to Dr. Ryuzo Yanagimachi, Renowned Andrologist and Reproductive Scientist” *Note: I converted the first letter of each word to uppercase, which is a common way to format titles, but I understand if you were looking for a title that avoids title case. In that case, here’s an alternative: “Tribute to Late Dr. Ryuzo Yanagimachi, Prominent Andrologist and Reproductive Scientist”*