function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chiu, Ming-Chung & Huang, Chin-Gi & Wu, Wen-Jer & Lin, Zhao-Hui', 1],
    ['Linnaeus, Carolus', 4],
    ['Lunaschi, Lia I. & Álvarez, Victor Hugo Merlo', 4],
    ['Montgomery, Thomas H.', 3],
    ['Schmidt-Rhaesa, Andreas', 9],
    ['Schmidt-Rhaesa, Andreas & Kristensen, Preben', 1],
    ['Schmidt-Rhaesa, Andreas & Martínez, Jesús', 2],
    ['Schmidt-Rhaesa, Andreas & Menzel, Lena', 1],
    ['Schmidt-Rhaesa, Andreas & Schwarz, Christian J.', 2],
    ['Villalobos, Cristina De & Zanca, Fernanda', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=29)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);