lˈændʒ wʌz ˈɔːlsoʊ ðə saɪəntˈɪfɪk dᵻɹˈɛktɚɹ ʌv ˌeɪtʃˌaɪvˈiː ˈiː dʒuːkˈeɪʃən, ɐn ˈɑːnlaɪn lˈɜːnɪŋ sˈɪstəm fɔːɹ mˈɛdɪkəl dˈɑːktɚz, nˈɜːsᵻz ænd kˈaʊnsəlɚz wˈɜːkɪŋ wɪð ˌeɪtʃˌaɪvˈiːpˈɑːzᵻtˌɪv pˈiːpəl.
Lange was also the Scientific Director of HIV[e]Ducation, an online learning system for medical doctors, nurses and counsellors working with HIV-positive people.