TY - RPRT TI - DIFFERENCES IN CYSTINE DEPENDENCE AND CHROMATOGRAPHIC BEHAVIOR BETWEEN TWO TYPE 4 ECHOVIRUS STRAINS. AU - C WALLIS AU - J L MELNICK PY - 1965 DO - 10.1128/jb.89.5.1310-1313.1965 UR - https://pubmed.ncbi.nlm.nih.gov/14293003/ ID - 14293003 ER -