TY - RPRT TI - [Double enzyme immunodiffusion method for detecting pepsinogen-pepsin]. AU - V P Kalinovskiĭ AU - A S Belokhvostov AU - I F Seĭts PY - 1983 UR - https://pubmed.ncbi.nlm.nih.gov/6196521/ ID - 6196521 ER -