TY  - RPRT
TI  - Multiple authorship.
AU  - R L Strub
AU  - F W Black
PY  - 1976
DO  - 10.1016/s0140-6736(76)91010-2
UR  - https://pubmed.ncbi.nlm.nih.gov/62934/
ID  - 62934
ER  -