hiː ˈɔːlsoʊ ɛkspɹˈɛst fɹʌstɹˈeɪʃən ðæt ˈæktɪvˌɪst ɡɹˈuːps hæv pɹɪvˈɛntᵻd nˈuːɚ sˌiːsˌiːˈɑːɹ fˈaɪv ɹᵻsˈɛptɚɹ æntˈæɡənˌɪsts fɹʌm bˌiːɪŋ tˈɛstᵻd ɪn jˈʊɹɹəp.
He also expressed frustration that activist groups have prevented newer CCR5 receptor antagonists from being tested in Europe.