function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Khalaim, A. I.', 10],
    ['Khalaim, Andrey I.', 13],
    ['Khalaim, Andrey I. & Belokobylskij, Sergey A.', 2],
    ['Khalaim, Andrey I. & Broad, Gavin R.', 8],
    ['Moreno, Alejandra González - & Bordera, Santiago', 1],
    ['Yue, Qi & Reshchikov, Alexey & Ang, Yuchen & Xu, Zai-Fu', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=37)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);