Boston Scientific (BSX) is gaining traction in the international markets. New regulatory approvals and accretive acquisitions bode well for long-term growth. Yet, unfavorable currency movement and macroeconomic concerns are major dampeners. The stock carries a Zacks Rank #3 (Hold).Factors Driving BSX SharesBoston Scientific successfully continues with its expansion of operations across different geographies outside the United States. In Europe, the Middle East and Africa (EMEA), Boston Scientific is success ...