Русско-английский словарь биологических терминов
более тяжелый— (The incidence of GVHD was substantial and) more severe(than would be seen with matched sibling donors.)
более тяжелый в энциклопедиях
более тяжелый— (The incidence of GVHD was substantial and) more severe(than would be seen with matched sibling donors.)