TY - `SER` TI - Special report series / Medical Research Council T2 - MRC special report PB - HMSO CY - London PY - 1920-1971 LA - eng SN - 0072-6575 SN - 0369-1683 KW - Medizin CN - P 496-20 CN - P 496-20 AN - UBHD-1254764 ER -