@misc{indiciae222da0f8b822, title = {Simultaneous passive and active immunization against hepatitis A.}, author = {A Leentvaar-Kuijpers and R A Coutinho and V Brulein and A Safary}, year = {1992}, doi = {10.1016/0264-410x(92)90569-6}, url = {https://pubmed.ncbi.nlm.nih.gov/1335646/}, note = {Source identifier: 1335646} }