function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Batista-Silva, Valéria Flávia & Frota, Augusto', 1],
    ['Casciotta, Jorge & Almirón, Adriana & Aichino, Danilo', 1],
    ['Cope, Edward Drinker', 4],
    ['De Oliveira, Rianne C. & Ota, Renata R. & Deprá, Gabriel C.', 2],
    ['Haseman, J. D.', 3],
    ['Heckel, J. J.', 6],
    ['Hensel, R. F.', 2],
    ['Kullander, Sven O.', 5],
    ['Kullander, Sven O. & Santos de Lucena, Carlos A.', 6],
    ['Ota, Renata Rúbia & Deprá, Gabriel de Carvalho', 6],
    ['Piálek, Lubomír & Dragová, Klára & Casciotta, Jorge', 2],
    ['Ploeg, A.', 9],
    ['de Lucena, C. A. S. & Kullander, Sven O.', 3],
    ['de Lucena, Carlos A. S.', 2],
    ['Říčan, Oldřich & Piálek, Lubomír & Almirón, Adriana', 8],
    ['Other (22)', 22]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=82)',
    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);