function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Atfy, Haytham El & Abeed, Qusay & Uhl, Dieter', 1],
    ['Bezerra-Santos, Marcos Antônio', 1],
    ['Bustamante-Gil, Carolina & Boltovskoy, Andrés & Rengefors, Karin', 12],
    ['Evenhuis, Neal L.', 1],
    ['Gnezdilov, Vladimir M.', 3],
    ['Grizancic, Lana & Baricevic, Ana & Smodlaka Tankovic, Mirta', 3],
    ['Gyulai, Peter & Saldaitis, Aidas & Zilli, Alberto', 1],
    ['Gómez, Fernando & Zhang, Huan & Roselli, Leonilde & Lin, Senjie', 2],
    ['Hernández-Becerril, David U. & Pichardo-Velarde, Jorge G.', 11],
    ['Krakhmalnyi, Aleksandr F. & Krakhmalnyi, Maxim A.', 22],
    ['Krakhmalnyi, Maxim & Krakhmalnyi, Aleksandr & Terenko, Galyna', 1],
    ['Lee, Won Je', 1],
    ['Lewis, Jane & Taylor, Joe D. & Neale, Klaire', 6],
    ['Mead, A. & Carlton, J. T. & Griffiths, C. L. & Rius, M.', 3],
    ['Nunes, Caio Ceza da Silva & Susini-Ribeiro, Sylvia Maria Moreira', 19],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=90)',
    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);