K H KARCHER
K H KARCHER
[The problem of preventive therapy of syphilis, especially in cases of doubtful infections] [0.03%]
[梅毒的预防治疗问题,尤其是可疑病例的问题]
G BIRNBAUM,F NEUMANN,K WULF
G BIRNBAUM
G K STEIGLEDER
G K STEIGLEDER
X VILANOVA,M CASANOVAS
X VILANOVA
G W KORTING,D NITZ-LITZOW
G W KORTING