Water-Soluble Mn(III)-Porphyrins with High Relaxivity and Photosensitization - Tamas Nemeth; Agnès Pallier; Çetin Çelik; Zoltán Garda; Naoko Yoshizawa-Sugata; Hisao Masai; Éva Tóth; Yoko Yamakoshi (Chemical & Biomedical Imaging)