function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barrales-Alcalá, Diego', 9],
    ['Butler, Arthur Gardiner', 13],
    ['Garwood, Russell J. & Dunlop, Jason A.', 3],
    ['Gravely, Frederic Henry', 5],
    ['Haupt, Joachim', 6],
    ['Kraepelin, Karl', 16],
    ['Kušta, Jan', 4],
    ['Lucas, Hippolyte', 5],
    ['Oates, E. W.', 8],
    ['Pocock, Reginald Innes', 17],
    ['Rowland, J. Mark', 4],
    ['Speijer, E. A. M.', 16],
    ['Stoliczka, Ferdinand', 4],
    ['Tarnani, J.', 8],
    ['Thorell, Tord Tamerlan Teodor', 4],
    ['Other (33)', 42]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=164)',
    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);