function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Fu, Hao-Yu & Fan, Li', 2],
    ['Fuente, Javier Isaac De La & Rosales-Rosales, Wendy', 1],
    ['García-Jiménez, Jesús & Ayala-Vásquez, Olivia', 1],
    ['Guevara-Guerrero, Gonzalo & Bonito, Gregory & Smith, Matthew E.', 2],
    ['Guo, Fang & Bau, Tolgor', 1],
    ['Leonardi, Marco & Iotti, Mirco & Mello, Antonietta', 4],
    ['Paez, Carolina Pina & Bonito, Gregory M.', 2],
    ['Polemis, Elias & Konstantinidis, Georgios & Fryssouli, Vassiliki', 1],
    ['Wan, Shan-Ping & Liu, Wei & Cui, Meng-Jin & Wang, Rui', 1],
    ['Wan, Shanping & Liu, Jianwei & Huang, Lanlan & Qin, Xiaomin', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    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);