function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cabral, Maria Cristina & Lord, Alan', 5],
    ['Chitnarin, Anisong & Forel, Marie-Béatrice & Tepnarong, Prachya', 2],
    ['Diaz, Analía R. & Álvarez, Victor Hugo Merlo', 1],
    ['Gross, Martin & Ramos, Maria Ines F. & Piller, Werner E.', 21],
    ['Guernet, Claude & Huyghe, Damien & Lartaud, Franck', 8],
    ['Guernet, Claude & Villier, Loïc', 9],
    ['Meisch, Claude & Smith, Robin J. & Martens, Koen', 11],
    ['Perez-Gelabert, Daniel E.', 1],
    ['RAUSCH, LEA & STOICA, MARIUS & LAZAREV, SERGEI', 2],
    ['Sabater, Lara Milena & Monferran, Mateo Daniel & Higuti, Janet', 2],
    ['Schornikov, Evgeny I.', 3],
    ['Scott-Frías, Joxmer & González, Ernesto & Pardo, María José', 4],
    ['Tomé, Maria Emilia & Araripe, Rilda & Oliveira, David', 4],
    ['Wannenmacher, Norbert & Dietze, Volker & Franz, Matthias', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=74)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);