(ZLAB) Alert: Did you Suffer a Substantial Loss? Contact Johnson Fistel About Leading ZLAB Class Action Lawsuit SAN DIEGO, March 16, 2022 (GLOBE NEWSWIRE) -- Shareholder rights law firm Johnson Fistel, LLP (www.JohnsonFistel.com) is investigating whether Zai Lab Limited ("Zai Lab" or the "Company") (NASDAQ:...