function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acero P., Arturo & Betancur-R., Ricardo', 1],
    ['Alexandre P. Marceniuk & Naércio A. Menezes', 35],
    ['Bleeker, Pieter', 7],
    ['Boulenger, George Albert', 1],
    ['Herre, Albert W. C. T.', 5],
    ['Kailola, Patricia J.', 4],
    ['Ng, H. H. Tan H. H.', 11],
    ['Ng, Heok Hee & Sparks, John S.', 2],
    ['Philippi, R. A.', 3],
    ['Puyo, J.', 4],
    ['Ricardo Betancur-R. & Arturo Acero P.', 9],
    ['Roberts, Tyson R.', 2],
    ['Steindachner, F.', 4],
    ['Vaillant, L. L.', 2],
    ['Zainal Abidin, Danial Hariz & Lavoué, Sébastien', 2],
    ['Other (23)', 23]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=115)',
    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);