function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 1],
    ['Angulo, Arturo', 1],
    ['Angulo, Arturo & Betts, Joel T. & González-Alemán, Néstor J.', 1],
    ['Bleeker, Pieter', 2],
    ['Edwards, A. J. & Gill, A. C. & Abohweyere, P. O.', 1],
    ['Marcia Salustiano de Castro & Ana Cristina Teixeira Bonecker', 1],
    ['Richardson, John', 1],
    ['Smith-Vaniz, William F. & Jelks, Howard L.', 1],
    ['Spix, J. B. von & Agassiz, Jean Louis Rodolphe', 2],
    ['Wilkinson, Clare L. & Hui, Tan Heok', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);