function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bartels, Paul J. & Fontoura, Paulo & Nelson, Diane R.', 1],
    ['Fontoura, Paulo & Bartels, Paul J. & Jørgensen, Aslak', 1],
    ['Jørgensen, Aslak & Boesgaard, Tom M. & Møbjerg, Nadja', 3],
    ['Kaczmarek, Łukasz & Bartels, Paul J. & Roszkowska, Milena', 27],
    ['Menechella, Agustín G. & Bulnes, Verónica N.', 2],
    ['Pollock, Leland W.', 1],
    ['Pérez-Pech, Wilbert Andrés & Jesús-Navarrate, Alberto De', 1],
    ['Richters, Ferdinand', 1],
    ['Santos, Erika & Da Rocha, Clélia M. C. & Jr, Edivaldo Gomes', 4],
    ['Santos, Erika & Rubal, Marcos & Veiga, Puri', 6],
    ['Vishnudattan, N. K. & Rubal, Marcos & Nandan, S. Bijoy', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=48)',
    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);