function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amato, José F. R. & Amato, Suzana B. & Seixas, Samantha A.', 2],
    ['Damborenea, Cristina & Brusa, Francisco', 1],
    ['Damborenea, M. C. & Cannon, L. R. G.', 1],
    ['Lenis, Carolina & Ruiz, Freddy & Muskus, Carlos', 1],
    ['León, Rodrigo Ponce De & Rudolph, Erich H. & Volonterio, Odile', 3],
    ['León, Rodrigo Ponce De & Volonterio, Odile', 2],
    ['Linton, E.', 1],
    ['Lopes, Daniela A. & Mainenti, Adriana & Knoff, Marcelo', 8],
    ['Lunaschi, Lia I. & Álvarez, Victor Hugo Merlo', 3],
    ['Seixas, Samantha A. & Amato, Suzana B. & Amato, José F. R.', 3],
    ['Volonterio, Odile', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=28)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);