function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Luna-Luna, Alba Magali & Martins, Caleb Califre', 3],
    ['Miranda, Gustavo Silva De & Sampaio, Brunno Henrique Lanzellotti', 2],
    ['Monte, Cinzia & Mascagni, Alessandro', 6],
    ['Polizei, Thiago Tadeu Silva & Costa, Lucas de Souza Machado', 3],
    ['Román, Nicolás Martínez & Archangelsky, Miguel', 2],
    ['Segura, Melissa Ottoboni & Valente-Neto, Francisco', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=21)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);