.china is host to 70 percent of all car cell therapy trials registered in 2017 and the first four months of 2018 (150 out of 214). . november 2, 2017 .in december 1972, robert and helen celebrated the birth of their only child together, son derek. . . october 2007 (19) .treatment delays are also causing needless anxiety and distress to patients as well as putting lives at serious risk. .helen, from marion, ill., had three children from a previous marriage. . advertisement