function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahl, E.', 1],
    ['Amaral Campos, A.', 2],
    ['Angulo, Arturo', 3],
    ['Chan, Jeffery C. F. & Tsang, Alphonse H. F. & Yau, Sze-man', 2],
    ['Cuvier, Georges', 3],
    ['De Oliveira, Rianne C. & Ota, Renata R. & Deprá, Gabriel C.', 2],
    ['Diniz, Paulo Baltazar & Siqueira, Hatus de Oliveira', 3],
    ['Eigenmann, C. H.', 4],
    ['Fink, William L. & Machado-Allison, Antonio', 4],
    ['Kner, R.', 5],
    ['Mateussi, Nadayca T. B. & Oliveira, Claudio', 6],
    ['Norman, J. R.', 2],
    ['Ota, Renata Rúbia & Deprá, Gabriel de Carvalho', 7],
    ['Steindachner, F.', 7],
    ['W. Peters', 2],
    ['Other (32)', 32]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=85)',
    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);