RT Journal Article SR Electronic T1 Learning disability registers: known unknowns and unknown unknowns JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 153 OP 154 DO 10.3399/bjgp21X715325 VO 71 IS 705 A1 Lara Shemtob A1 Rathy Ramanathan A1 Ken Courtenay YR 2021 UL http://bjgp.org/content/71/705/153.abstract AB