This is a closely allied grammatical error.
Times, Sunday Times (2011)
Obviously, this cognitive impairment is closely allied to and inseparable from emotional and relational difficulties.
Bloom, Carol & Gitter, Andrea (contributor) & Gutwill, Susan (contributor) & Kogel, Laura (contributor) & Zaphiropoulos, Lela (contributor) Eating Problems: A Feminist Psychoanalytic Treatment Model (1994)
This will also be a form of planning which is closely allied to a restructured economy and a new set of social priorities.
Brindley,Tim & Rydin, Yvonne & Stoker, Gerry Remaking Planning: the politics of urban change in the Thatcher years (1989)