function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albuquerque, Flavio & De-Souza, Caroline Costa', 3],
    ['Almeida, Flavio Roberto De Albuquerque', 6],
    ['Carpintero, Diego Leonardo & Dellapé, Pablo Matías', 2],
    ['Carvalho-Filho, Fernando da Silva & Albuquerque, Flavio', 1],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 6],
    ['Hill, Lionel', 21],
    ['Hoey-Chamberlain, Rochelle & Weirauch, Christiane', 18],
    ['Kment, Petr & Baňař, Petr & Bílý, Svatopluk', 1],
    ['Kment, Petr & Kolínová, Zdislava', 1],
    ['Leon, Stephanie & Weirauch, Christiane', 32],
    ['Luo, Jiu-Yang & Gong, Qiang-Bang & Xie, Qiang', 2],
    ['Luo, Jiu-Yang & Xie, Qiang', 15],
    ['Rédei, Dávid', 3],
    ['Weirauch, Christiane & Hoey-Chamberlain, Rochelle', 14],
    ['Weirauch, Christiane & Whorrall, Kyle & Knyshov, Alexander', 3],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=131)',
    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);