function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Caleb, John T. D. & Sanap, Rajesh V. & Tripathi, Rishikesh', 1],
    ['Logunov, Dmitri', 4],
    ['Logunov, Dmitri V. & Ikeda, Hiroyoshi & Ono, Hirotsugu', 1],
    ['Peckham, George William & Peckham, Elizabeth G.', 1],
    ['Peng, Xianjin & Li, Shuqiang', 2],
    ['Wesolowska, W. & van Harten, A.', 1],
    ['Wesolowska, Wanda & Haddad, Charles R.', 1],
    ['ZONSTEIN, SERGEI & MARUSIK, YURI M.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);