Progesterone (abbreviated as P4), also known as pregn-4-ene-3,20-dione, is an endogenous steroid and progestogen sex hormone involved in the menstrual cycle, pregnancy, and embryogenesis of humans and other species.
Volumes 9 and 10 the Sailor Moon Manga Complete Editions are now out. Last week, March 25th, volumes 9 and 10 of the Sailor Moon Manga Complete Editions were released in Japan. Volume 9 features Endymion and Serenity on the cover while volume 10 features all 10 Sailor Guardians.
1 2009: One Piece was the best selling manga series in Japan with 14,721,241 volumes sold. 2  Volume 53 hold the first place with 2,057,528 copies sold, volumes 54, 52, and 55 place second, third and fourth respectively with 1,963,696, 1,952,551, and 1,810,410 copies sold respectively.