function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Grouvelle, Antoine', 1],
    ['Luna-Luna, Alba Magali & Martins, Caleb Califre', 2],
    ['Monte, Cinzia & Mascagni, Alessandro', 18],
    ['Polizei, Thiago T. S. & Barclay, Maxwell V. L.', 4],
    ['Sampaio, Brunno Henrique Lanzellotti', 3],
    ['Segura, Melissa Ottoboni & Passos, Maria Ines Da Silva Dos', 1],
    ['Segura, Melissa Ottoboni & Valente-Neto, Francisco', 19],
    ['Shepard, William D. & Sites, Robert W. & Rodrigues, Higor D. D.', 1],
    ['Takiya, Daniela Maeda & Santos, Allan Paulo Moreira', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=53)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);