1939712 sgAHs second-generation H1-antihistamines 17 3436329 sgAH second-generation H1-antihistamine 6 1939669 sgAH1 second-generation H1-antihistamines 1 3674560 sgH1-AH second-generation H1-antihistamines 1 568282 sgH1-AHs second-generation H1-antihistamines 1