function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Broch, H.', 29],
    ['Carriol, René-Pierre', 16],
    ['Chan, Benny K. K. & Dreyer, Niklas & Gale, Andy S.', 41],
    ['Darwin, Charles Robert', 83],
    ['Hiro, F.', 28],
    ['Jones, Diana S.', 19],
    ['Kolosvary, G.', 50],
    ['Nilsson-Cantell, C. a.', 28],
    ['Pilsbry, Henry A.', 94],
    ['Pitriana, Pipit & Jones, Diana S. & Corbari, Laure', 33],
    ['Pitriana, Pipit & Valente, Luis & von Rintelen, Thomas', 21],
    ['Seguenza, G.', 25],
    ['Shahdadi, Adnan & Sari, Alireza & Naderloo, Reza', 29],
    ['Young, Paulo S.', 37],
    ['Zullo, V. A.', 27],
    ['Other (173)', 547]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1107)',
    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);