function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cho, H. - W. & An, S. L.', 4],
    ['Fabricius, Johann Christian', 2],
    ['Faisal, Mohammad & Singh, Sudhir', 4],
    ['Ghahari, Hassan & Borowiec, Lech', 25],
    ['Horn, Geo. H.', 28],
    ['Kasatkin, D. G.', 1],
    ['Li, You & Wang, Zhiliang & Guo, Jianjun & Napoles, Jesus Romero', 7],
    ['Motschulsky, Victor de', 1],
    ['Romero, Jesus & Johnson, Clarence Dan', 1],
    ['Schaeffer, C.', 1],
    ['Stojanova, Anelia & György, Zoltán', 32],
    ['Wiedemann, Christian Rudolph Wilhelm', 1],
    ['Yus-Ramos, Rafael & Ventura, Daniel & Bensusan, Keith', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=108)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);