What is the best way to save multiple data types of a struct {} in a text file?

Question

I need to create a program that registers a user and stores their respective data in a text file. It happens to be various data (Name, CPF, Phone, Address, email, etc.). Then I created a struct full of different types, each according to the appropriate type of data (The CPF, Phone are like char because it will be only symbolic, I will not do any calculation operation with any of them, so I think char is the most appropriate). My problem is that I am repeating several functions in a very inadequate way, I think I could create functions() to make the code cleaner and less repetitive, but I can’t think of a suitable solution. Here’s the code to make it clearer:

#include <stdio.h>
#include <stdlib.h>
#define MAX 100

struct paciente {
    char nome[MAX];
    char CPF[MAX];
    char tel[MAX];
};

int main()
{
    struct paciente paciente;
    FILE *dadospaciente;

    dadospaciente = fopen("paciente.txt", "w");

    if (dadospaciente == NULL)
    {
        printf("Error!\n");
        exit(1);
    }

    // Entrada de dados da struct paciente & salvar dados em arquivo de texto
    printf("\nEntre com o nome: ");
    //scanf("%s", paciente.nome);
    fgets(paciente.nome, MAX, stdin);
    fprintf(dadospaciente, "Nome do paciente: %s", paciente.nome);
    //fclose(dadospaciente);

    printf("\nEntre com o CPF: ");
    fgets(paciente.CPF, MAX, stdin);
    fprintf(dadospaciente, "\nCPF: %s", paciente.CPF);

    printf("\nTelefone: ");
    fgets(paciente.tel, MAX, stdin);
    fprintf(dadospaciente, "\nTelefone: %s", paciente.tel);
    fclose(dadospaciente);

    return 0;
}

That’s just code for testing. As you can see, I am repeating every time the process of capturing strings, and doing the same process for all the data I mentioned at the beginning of the question will be very extensive and I think there should be another solution to this. How can I repeat the same process without copying and pasting the code and only changing the variables? Thank you from now