RT Journal T1 The unregulated commercialization of stem cell treatments: a global perspective A1 Douglas Sipp PB Front. Med. FD 2011-12-05 YR 2011 JF Frontiers of Medicine JO Front. Med. VO 5 IS 4 SP 348 DO 10.1007/s11684-011-0150-x K1 stem cell tourism;medical ethics;stem cell policy and regulation;alternative medicine LK {https://academic.hep.com.cn/fmd/EN/article/article_2512.shtml}