function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alekseev, Vitalii I. & Bukejs, Andris', 6],
    ['Alekseev, Vitaly I.', 5],
    ['Blackburn, T. & Sharp, David', 5],
    ['Borges, Paulo A. V. & Gaspar, Clara', 2],
    ['Bukejs, Andris & Alekseev, Vitalii I.', 2],
    ['Bukejs, Andris & Alekseev, Vitalii I. & Cooper, David M. L.', 3],
    ['Chittaro, Yannick & Sanchez, Andreas', 3],
    ['Eifler, Michael', 2],
    ['Fabricius, Johann Christian', 2],
    ['Jelínek, Josef', 2],
    ['Kugelann, Johann Gottlieb', 2],
    ['Majka, Christopher G.', 24],
    ['Sakai, Masahiro', 34],
    ['Schnepp, Kyle E.', 18],
    ['Sharp, David', 6],
    ['Other (33)', 34]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=150)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);