function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Broch, H.', 15],
    ['Chan, Benny K. K. & Dreyer, Niklas & Gale, Andy S.', 8],
    ['Darwin, Charles Robert', 52],
    ['Henry, D. P.', 6],
    ['Hiro, F.', 6],
    ['Kolosvary, G.', 37],
    ['Nilsson-Cantell, C. a.', 11],
    ['Pilsbry, Henry A.', 46],
    ['Pitriana, Pipit & Valente, Luis & von Rintelen, Thomas', 7],
    ['Ross, A.', 6],
    ['Seguenza, G.', 12],
    ['Shahdadi, Adnan & Sari, Alireza & Naderloo, Reza', 7],
    ['Weisbord, Norman', 11],
    ['Withers, T. H.', 6],
    ['Zullo, V. A.', 23],
    ['Other (75)', 149]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=402)',
    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);