COLEC 7,COLEC7,Collectin-7,Collectin7,Lung surfactant protein D,PSP D,PSP-D,PSP-D Surfactant protein D,PSPD,Pulmonary surfactant apoprotein,Pulmonary surfactant associated protein D,Pulmonary surfactant associated protein PSP-D,Pulmonary surfactant-associated protein D,SFTP 4,SFTP4,SFTPD,SFTPD,SP D,SP-D,Surfactant associated protein pulmonary 4,Surfactant pulmonary associated protein D