function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ayoro, Halamoussa Joëlle & Segniagbeto, Gabriel Hoinsoudé', 2],
    ['Badjedjea, Gabriel & Masudi, Franck M. & Akaibe, Benjamin Dudu', 2],
    ['Conradie, Werner & Bittencourt-Silva, Gabriela B.', 1],
    ['Conradie, Werner & Branch, William R. & Watson, Gillian', 1],
    ['Conradie, Werner & Keates, Chad & Verburgt, Luke', 2],
    ['Evans, Ben J. & Carter, Timothy F. & Greenbaum, Eli', 6],
    ['Evans, Ben J. & Carter, Timothy F. & Tobias, Martha L.', 1],
    ['Figueroa, Alex & Low, Martyn E. Y. & Lim, Kelvin K. P.', 1],
    ['Kanga, Kouassi Philippe & Kouamé, N’Goran Germain', 1],
    ['Miracle, Eulàlia Gassó & Van, Lars W. & Ostende, Den Hoek', 1],
    ['Santos, Bruna S. & Marques, Mariana P. & Bauer, Aaron M.', 1],
    ['Sánchez-Vialas, Alberto & Calvo-Revuelta, Marta', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=21)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);