Chinese Medical Doctor Association Anorectal Physician Branch Science Popularization Professional Committee Founding Conference Chinese Medical Doctor Association Anorectal Physician Branch Science Popularization Professional Committee Founding Conference Chinese Medical Doctor Association Anorectal Physician Branch Science Popularization Professional Committee Founding Conference Chinese Medical Doctor Association Anorectal Physician Branch Science Popularization Professional Committee Founding Conference Chinese Medical Doctor Association Anorectal Physician Branch Science Popularization Professional Committee Founding Conference Chinese Medical Doctor Association