function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Asso, I. de', 1],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Bloch, Marcus Elieser & Schneider, J. G.', 3],
    ['Bonnaterre, Joseph Pierre', 2],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Couch, J.', 1],
    ['Gol’din, Pavel & Haiduc, Bogdan Stelian & Kovalchuk, Oleksandr', 2],
    ['Houttuyn, M.', 6],
    ['Linnaeus, Carolus', 25],
    ['Ogilby, J. D.', 3],
    ['Osbeck, P.', 4],
    ['Rafinesque, Constantine Samuel', 7],
    ['Risso, A.', 4],
    ['Russell, Barry C.', 3],
    ['Walbaum, J. J.', 8],
    ['Other (18)', 18]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=89)',
    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);