TY - GEN AU - Fairfax,A J AU - Leatham,A TI - Letter: Heart block and autoimmunity SN - 0007-1447 PY - 1976///0320 KW - Autoantibodies KW - Heart Block KW - etiology KW - Humans KW - Hypothyroidism KW - immunology N1 - Publication Type: Journal Article UR - https://doi.org/10.1136/bmj.1.6001.93 ER -