BibTeX generates the same citation call-out for two publications

I have two publications with the same author (same surname and same first initial) and year. Usually when this happens, BibTeX automatically appends an "a" or a "b" to distinguish the two. However, in this case, that is not the case. Here is what I’ve got:

bibliographystyle{apalike}
bibliography{bibliography, studies}

Bibtex:

@INPROCEEDINGS{usingbertto,  
    author={C. {Lin} and C. {Huang} and C. {Wu}}, 
    booktitle={2019 IEEE 20th International Conference on Information Reuse and Integration for Data Science (IRI)},
    title={{Using BERT to Process Chinese Ellipsis and Coreference in Clinic Dialogues}},   
    year={2019},  
    volume={},  
    number={},  
    pages={414-418},  
    doi={10.1109/IRI.2019.00070}
}

@inproceedings{abertbaseduniversal,
    title = {A {BERT}-based universal model for both within-and cross-sentence clinical temporal relation extraction},
    booktitle = {Proceedings of the 2nd {Clinical} {Natural} {Language} {Processing} {Workshop}},
    author = {Lin, Chen and Miller, Timothy and Dligach, Dmitriy and Bethard, Steven and Savova, Guergana},
    year = {2019},
    pages = {65--71}
}

Both papers are referenced with the citation [Lin et al., 2019]. Is there any way to make BibTeX distinguish between the two?