independent investigators were called into royal oldham after the deaths of four babies and two mothers , and north manchester general after the deaths of another three babies and one mother .
lisa parkisson , 35 , died at oldham royal 48 hours after giving birth in april this year , while newborn thomas beaty died at the same hospital after doctors forced him back into the womb .
a summary of the investigation , which was kept secret from the families of the dead until now , has been seen by mailonline .